Billing & Invoicing
Frisbii (formerly billwerk+)
EU-Made Report an errorPanel rating · 6 judges · How to read the stars
Category median
Sovereignty: 1 of 4 dimensions proven
0–5 in half steps. 5 means the rubric's top anchor is met on the evidence.
by Frisbii Germany GmbH · frisbii.com
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Frisbii (formerly billwerk+) at a glance
- Vendor
- Frisbii Germany GmbH
- Headquarters
- Not stated on the vendor’s pages as of 26 Oct 2026
- Data hosting
- Not stated on the vendor’s pages as of 26 Oct 2026
- Free plan
- Not stated on the vendor’s pages as of 26 Oct 2026
- Starting price
- “Starter Launch your subscription billing – simple, fast, low complexity Integrated payment gateway Plans, add-ons, discounts & coupons Hoste...” (vendor’s words) source, captured 26 Oct 2026
- Panel verdict
- The AI panel rates Frisbii (formerly billwerk+) 3/5, the mean of 6 judges. Frisbii, formerly billwerk+, is the recurring-revenue platform of Frisbii Germany GmbH in Frankfurt. how scores are made
- As of
- Vendor pages captured 26 Oct 2026; evaluated by the panel 28 Oct 2026. all sources
Frisbii (formerly billwerk+) alternatives, European ones first →
Read this page as one judge. Each weighs the same scores by what they care about.
The panel's verdict
Frisbii, formerly billwerk+, is the recurring-revenue platform of Frisbii Germany GmbH in Frankfurt. It is strongest on revenue and accounting handoff, where scores sit at 7: a DATEV export documented in unusual depth — SKR03 or SKR04, posting-key overrides, revenue accounts per tax country, rate and currency, delivery to SFTP, Google Drive or OneDrive — plus MRR, ARR and churn dashboards and a Salesforce integration. Subscription engine, invoicing compliance, tax handling and collections cluster at 6-7, built on seven lifecycle states, Factur-X 1.0.07 / ZUGFeRD 2.3 e-invoicing on the EN16931 profile, automatic VAT by customer country and configurable dunning; the judges found no public information on VIES validation, OSS reporting, XRechnung, Peppol, proration or an exit path for subscriptions and payment tokens. Sovereignty scores 4-5, the lowest mark in the table, and the spread is one of weight, not fact: German contracting entities, a German data protection officer and a four-language data processing agreement set against a core billing platform whose hosting the captured pages do not describe. Judge totals run 5.9 to 6.7.
Speaks for it
- DATEV export documented in unusual depth — SKR03 or SKR04, posting-key overrides, automatic debtor IDs, revenue accounts per tax country, rate and currency — deliverable daily, weekly or monthly to SFTP, Google Drive or OneDrive.
- E-invoicing issues Factur-X 1.0.07 / ZUGFeRD 2.3 hybrid documents on the EN16931 profile for invoices and credit notes alike.
- Subscription lifecycle modelled through seven states, with add-ons, trials, usage-based and hybrid pricing and a self-service portal for upgrades and downgrades.
- Dunning is configurable interval by interval up to automatic cancellation, with automatic retries on temporary failures and immediate dunning on permanent ones.
- VAT is determined automatically by customer country, with the normal rates of the 20 main European countries preset and German rate-change key dates preconfigured.
Held against it
- The captured pages give no hosting location for the core billing platform; the privacy notice says data is processed "in some cases" on servers in Germany and the EU.
- We found no public information on VIES validation of VAT IDs, OSS reporting data or US sales tax.
- We found no public information on XRechnung output, Peppol delivery or GoBD-conform archiving.
- We found no public information on a documented migration path for subscriptions and stored payment details to another provider.
- We found no public information on proration, usage metering through an API, quote-to-subscription conversion or multi-currency price books.
Best for
- You run European subscription billing and close your books in DATEV — the accounting handoff is the bench's strongest criterion, scoring 7.
- You must issue EN16931 e-invoices as Factur-X 1.0.07 / ZUGFeRD 2.3 and correct invoices only by separately numbered credit notes.
- You bill EU business customers under reverse charge and want VAT applied automatically by customer country from preset European rates.
- You want a self-service portal where customers upgrade or downgrade themselves, with dunning plans you control interval by interval.
Avoid if
- You must confirm where your billing data is hosted before signing — sovereignty is the lowest score in the table at 4-5, and the privacy notice commits only to processing "in some cases" on servers in Germany and the EU.
- You expect the billing system to verify tax status itself — the help pages state that Frisbii does not check whether a VAT group legally exists, and the accounting export assumes you take part in the OSS procedure.
- Your customers sit mainly outside Europe and you rely on preset tax rates — the standard setting carries the normal rates of the 20 main European countries, with other countries falling to your own configuration and the account's default VAT.
The scores
| Criterion | Panel median |
|---|---|
| Plans, pricing models & subscription lifecycle | 3.5 of 5 |
| Invoices & e-invoicing compliance | 3.5 of 5 |
| Cross-border VAT & tax handling | 3 of 5 |
| Payment collection, dunning & portability | 3 of 5 |
| Revenue reporting & accounting handoff | 3.5 of 5 |
| European sovereignty | 2 of 5 |
Plans, pricing models & subscription lifecycle
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How this is scored
How the product models what is sold and to whom: plans, add-ons and price points, trials, upgrades and downgrades with proration, usage-based and seat-based pricing, contract terms and renewals, quotes, and a self-service portal where the customer changes or cancels their own subscription.
0 — No subscription model; recurring charges are set up by hand per customer or per invoice.
3 — A recurring invoice or a fixed plan that repeats on a schedule, but no proration, no trials, no add-ons and no usage component.
5 — Plans with add-ons and trials, upgrades and downgrades with proration, renewals and cancellations handled by the system, and a customer portal for viewing and changing the subscription.
8 — Usage-based, tiered, volume and seat-based pricing with metering through an API, contracts with minimum terms, ramps and notice periods, quotes that convert into subscriptions, multiple currencies and price books, and the subscription history kept per customer.
10 — The commercial model lives in the product: hybrid pricing (commitments, prepaid credits, overage) without custom code, price changes rolled out to existing customers with grandfathering, entitlements exposed to the selling application, and every change to a subscription versioned and attributed.
The SaaS Founder
Plans, add-ons, discounts and coupons, trials, usage-based and hybrid pricing and a self-service customer portal with upgrades and downgrades are all documented, and the lifecycle is modelled end to end through named states from pending to expired, with scheduled actions, pause and trial flags. For our upcoming usage-based tier that covers most of what I need. We found no public information on quotes converting into subscriptions, multiple currencies and price books, metering through an API, or price changes rolled out to existing customers with grandfathering. 2 6 7
The Finance Lead
The subscription lifecycle is documented in real depth — pending, trial, active, on-hold, cancelled, non-renewing and expired states, scheduled actions, and renewal and change events exposed through the API documentation. Plans carry add-ons, one-off charges and credits, usage-based and hybrid pricing on the Growth and Scale plans, contract management, and a self-service customer portal with upgrades and downgrades. I found no public information on quotes converting into subscriptions, metering through an API, or price changes rolled out with grandfathering, which keeps it below the top band. 2 6 7
The Billing Engineer
The lifecycle is real engineering: seven subscription states including trial and on-hold, sub-state flags exposed via API, a named event set covering renewal, cancellation, uncancelled and pricing changes, plus plans with add-ons and credits, usage-based and hybrid pricing, three documented upgrade and downgrade routes, scheduled actions, contract management and a self-service customer portal. We found no public information on proration, metering usage through an API, quotes that convert into subscriptions, or multiple currencies and price books, which is what keeps this below the level of a full commercial-model engine. 2 6 7
The Service-Business Owner
Subscription lifecycle is genuinely modelled: seven states from pending through trial to expired, add-ons and one-off charges attached to a plan, usage-based and hybrid pricing on the higher plans, scheduled actions, and a self-service portal where customers upgrade or downgrade. We found no public information on proration, metering through an API, quote-to-subscription conversion or multi-currency price books, so it sits above basic recurring billing but short of full commercial-model machinery. 2 6 7
The Tax Adviser
Add-ons, trials, three documented upgrade and downgrade paths, usage-based and hybrid pricing models and a self-service customer portal are all evidenced, with the full lifecycle from pending through trial, on-hold and non-renewing to expired handled by the system. I found no public information on proration at mid-period changes, metering through an API, quotes that convert into subscriptions, or multi-currency price books, and entitlements appear only in the Scale tier's feature list. 2 6 7
The Skeptic
Plans, add-ons, discounts and coupons, trials, usage-based and hybrid pricing and a self-service portal where customers upgrade and downgrade themselves are all documented, and the lifecycle runs unusually deep — pending, trial, on-hold, cancelled-to-expire and non-renewing states, scheduled actions, and per-subscription events exposed through the API. The commercial model plainly lives in the product on the Growth and Scale plans, with advanced entitlements and multi-entity setup named at the top. I found no public information on proration, on metering usage through an API, on quotes that convert into subscriptions, or on tiered, volume or seat-based pricing — and that is what keeps this below the top level. 2 6 7
Invoices & e-invoicing compliance
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How this is scored
Whether the invoices the product issues are legally valid where the customer is: mandatory invoice content, sequential numbering, credit notes and cancellations instead of edits, retention and archiving to GoBD, and structured e-invoices (XRechnung, ZUGFeRD/Factur-X, Peppol) for business customers and public bodies.
0 — No invoices; the product charges cards or sends payment requests and the seller writes invoices elsewhere.
3 — PDF invoices from a template, but numbering, mandatory content, corrections and retention are not described.
5 — Invoices with sequential numbering and the mandatory content stated, credit notes and cancellations instead of edits, invoices in several languages and currencies, and a documented archive.
8 — Structured e-invoices to EN 16931 issued as XRechnung or ZUGFeRD/Factur-X and sent through Peppol, GoBD-compliant numbering and unalterable archiving stated, invoice data exportable for a tax audit, and the e-invoicing mandates in named EU countries addressed.
10 — Invoicing that stands up in any audit it may face: e-invoicing to public bodies and businesses in several EU countries with the channels named, clearance and reporting models (France, Italy, Poland) supported where they apply, a Verfahrensdokumentation or equivalent offered, and every invoice traceable to the subscription event that produced it.
The SaaS Founder
E-invoices go out as Factur-X 1.0.07 / ZUGFeRD 2.3 on the EN16931 profile for both invoices and credit notes, numbering is automatic with configurable prefixes and reset rules, and corrections happen by credit note with its own configurable number sequence while the original invoice stays unchanged. Invoices are generated and archived as PDFs, with DIN5008 compliance warnings on invoice formatting. We found no public information on XRechnung, Peppol sending, or GoBD-compliant unalterable archiving, which is what a German audit would ask me for. 8 9
The Finance Lead
Invoices are generated and archived as PDFs with automatic numbering, configurable prefixes and reset rules, and every correction runs through a credit note that leaves the original invoice untouched — the discipline a tax auditor expects. Structured e-invoicing to the EN16931 profile is implemented as Factur-X 1.0.07 / ZUGFeRD 2.3, and it extends to credit notes as PDF+XML. I found no public information on XRechnung or Peppol sending, GoBD-compliant unalterable archiving, or the e-invoicing mandates in named countries. 8 9
The Billing Engineer
Invoices are generated and archived automatically with configurable number prefixes and monthly, yearly or no reset, corrections happen as credit notes with their own number sequence while the original invoice stays untouched, and a refund automatically creates a credit note. Enabling e-invoicing produces Factur-X 1.0.07 / ZUGFeRD 2.3 hybrid PDFs on the EN16931 profile for invoices and credit notes alike, with DIN 5008 formatting warnings and per-country exemption texts. We found no public information on XRechnung, delivery through Peppol, GoBD-compliant numbering and unalterable archiving, or the e-invoicing mandates of named EU countries. 8 9 10
The Service-Business Owner
Invoices are numbered automatically with configurable prefixes and reset options, generated and archived as PDF, and corrections happen through credit notes carrying their own accounting number while the original invoice stays untouched; e-invoicing produces Factur-X 1.0.07 / ZUGFeRD 2.3 under the EN16931 profile for invoices and credit notes alike. We found no public information on XRechnung output, Peppol delivery or GoBD-conform archiving statements, which I would still need for public-sector customers. 8 9
The Tax Adviser
Hybrid e-invoices as Factur-X 1.0.07 / ZUGFeRD 2.3 to the EN 16931 profile, automatic invoice numbering with configurable prefixes and reset rules, and credit notes as separately numbered documents that leave the original invoice unchanged — that trifecta is done properly, down to DIN 5008 warnings and printable VAT exemption texts. I found no public information on Peppol delivery, XRechnung for public bodies or a named-GoBD archiving guarantee; archiving is described only as PDFs being generated and archived. 8 9
The Skeptic
Structured e-invoicing is documented, not just promised: invoices and credit notes are issued as Factur-X 1.0.07 / ZUGFeRD 2.3 hybrid documents using the EN 16931 profile, invoice numbers are generated automatically with configurable prefixes and separate sequences for credit notes, a credit note cancels an invoice while the original document stays untouched, and PDFs are generated and archived. Correction discipline and numbering are well covered. I found no public information on sending through Peppol, on XRechnung, on GoBD-compliant unalterable archiving, on an export for a tax audit, or on e-invoicing mandates in named countries — and without those, an EN 16931 hybrid PDF is only half of compliance. 8 9
Cross-border VAT & tax handling
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How this is scored
How the product gets tax right when the seller sells across borders: VAT rates per country and product type, reverse charge for business customers with VAT ID validation (VIES), the EU One-Stop-Shop, US sales tax — or, for a merchant of record, which tax liability it takes on in its contract and which it leaves with the seller.
0 — No tax handling; the seller types the rate on every invoice.
3 — One configurable VAT rate or a manual rate table, with no customer-location logic and no VAT ID check.
5 — Tax rates applied by customer country and status, reverse charge for business customers with a VAT ID field, and tax shown correctly on invoices and in reports.
8 — Automatic VAT per country and product type, VIES validation of VAT IDs, OSS reporting data, evidence of customer location kept, US sales tax through a named engine — or a merchant-of-record contract that states the tax liability it assumes and in which countries.
10 — Tax is discharged and evidenced: filings or filing data for OSS and the countries sold into, rate changes maintained by the vendor with a stated process, tax decisions per invoice explainable, and the division of liability between seller and vendor written into the terms.
The SaaS Founder
VAT is determined automatically by customer country with preset normal rates for twenty top European countries, reverse charge applies to cross-border EU business customers when a VAT number is configured and the tax setting enables it, non-EU deliveries print at 0% with an exemption text, and German rate-change dates with service-period splitting come preset. Invoices follow the customer's language and exemption texts are translatable. We found no public information on VIES validation of VAT IDs, OSS reporting data, or US sales tax, and reverse charge relies on my own configuration rather than any validated check. 10 11 15
The Finance Lead
VAT is determined automatically by customer country — a standard setting covering the top twenty European markets — with reverse charge for EU business customers whose VAT number is configured, and exemption texts printed on the invoice in the customer's language. The German rate cuts are handled from a key date with automatic splitting of continuous services, and the end-of-performance-period rule is exactly how subscriptions should be taxed. I found no public information on VIES validation of VAT IDs, OSS reporting data, or US sales tax. 10 11 15
The Billing Engineer
VAT is determined automatically by customer country with a standard setting covering the normal rates of the twenty principal European countries, reverse charge applies to cross-border EU customers that have a VAT number on record, and zero-rate exemption texts exist for reverse charge, non-EU sales and domestic VAT groups, with the German 2020/2021 rate changes preset and automatic splitting of continuous services at rate-change dates. Two things cap it: we found no public information on validation of VAT IDs against VIES, and the captured pages state that EU business-to-consumer invoices simply assume you take part in the One-Stop-Shop procedure rather than describing OSS reporting data; we also found no public information on US sales tax. 10 11 15
The Service-Business Owner
VAT is determined automatically by customer country, a standard tax setting ships with the normal rates of the 20 main European countries, reverse charge fires for EU business customers with a configured VAT number, non-EU customers are billed at 0% with a printed exemption text, and German rate changes with key dates and service-period-end logic are preset. We found no public information on VIES validation of VAT IDs, OSS reporting data or US sales tax, so those checks stay with my tax adviser. 10 11
The Tax Adviser
VAT is applied automatically by customer country with the normal rates of twenty European countries preconfigured, reverse charge for EU business customers requires a VAT number to be configured, non-EU supplies go out at 0% with a printed exemption text, and German rate changes with key-date splitting are preset. The documentation stops at a VAT number being configured — I found no public information on VIES validation before 0% is applied — and the VAT-group option explicitly places the legal verification on the seller's tax adviser; OSS is assumed of the seller rather than evidenced with reporting data, and I found no public information on US sales tax. 10 11 15
The Skeptic
VAT is determined automatically from the customer's country, with a standard setting presetting the normal rates of the 20 main European countries, reverse charge applying to EU business customers with a VAT number configured, exemption texts printed for non-EU customers, VAT groups and reverse charge, and the German 16%/5% rate change preconfigured with key dates and automatic splitting of continuous services. The division of responsibility is at least honest — the help pages state that Frisbii Billing does not verify whether a VAT group legally exists and direct you to your tax advisor. I found no public information on VIES validation of VAT IDs, on OSS reporting data (the accounting export states that for EU B2C the system assumes you take part in the OSS procedure), on US sales tax, or on customer-location evidence being kept. 10 11 15
Payment collection, dunning & portability
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How this is scored
How invoices turn into money: which payment providers and methods the product works with, SEPA direct-debit mandates, automatic retries and dunning sequences, payment reconciliation, collections handover — and whether the seller can move subscriptions and stored payment details to another provider.
0 — No collection; invoices are sent and payment is chased by hand.
3 — One built-in payment provider with card payments, and failed payments reported but not retried or chased.
5 — Several payment providers or methods including SEPA direct debit with mandates, automatic retries of failed payments, dunning emails with configurable steps, and payments matched to invoices.
8 — Gateway-agnostic collection across named providers, smart retries and card updaters, dunning with escalation and service suspension rules, bank-transfer reconciliation, a handover to a collection agency, and recovery reported.
10 — Collection is portable and measurable: subscriptions and payment tokens importable and exportable with a documented migration path, routing across providers per country or method, recovered revenue reported per dunning step, and no lock-in to the vendor's own payment service stated in the terms.
The SaaS Founder
Failed payments are retried automatically on temporary errors with smart failure classification while dunning starts immediately on permanent ones, and I control the dunning plan's intervals and actions up to automatic cancellation and reminder emails — exactly the retry-before-churn behaviour I care about. One gateway covers fifty-plus European payment methods, SEPA direct debit includes return handling, a beta AI collections agent chases unpaid invoices and records promises to pay, and a receivables dashboard tracks collection performance. We found no public information on card account updaters, bank-transfer reconciliation, handover to a collection agency, or a documented migration path for subscriptions and payment tokens. 2 8 12 13 14
The Finance Lead
Payment failures are classified — temporary errors such as an exceeded limit are retried automatically, permanent ones like an expired card trigger dunning immediately — and the dunning plan's intervals and actions are configurable, with automatic cancellation as an end state and SEPA direct-debit returns handled separately. Fifty-plus European payment methods run through one gateway, and a beta AI collections agent contacts customers and records promises to pay under user oversight. I found no public information on card updaters, a handover to a collection agency, or a documented migration path for subscriptions and stored payment data. 2 8 12 13
The Billing Engineer
Dunning is properly engineered: smart failure classification retries temporary errors such as an exceeded credit limit and starts dunning immediately on permanent ones like an expired card, plans give full control over intervals and actions and can end in subscription cancellation, SEPA direct debit is supported with configurable return handling, and a beta AI collections agent contacts customers, answers replies and records promises to pay while the payments and receivables dashboards track failed transactions and collection performance. Gateway choice is documented only as Frisbii or partner payment gateway options, and we found no public information on card updaters, bank-transfer reconciliation, handover to a collection agency, or a migration path that moves subscriptions and payment tokens to another provider. 2 8 12 13 14
The Service-Business Owner
SEPA direct debit via PPRO or EBICS with configurable return handling, retries that classify temporary versus permanent failures, a dunning plan I control interval by interval up to automatic cancellation, receivables and collection-performance dashboards, and a beta AI collections agent that contacts debtors and records promises to pay. We found no public information on SEPA mandate management, card updaters, a handover to a collection agency, or a documented migration path for subscriptions and payment tokens. 2 8 12 13 14
The Tax Adviser
One gateway covering more than fifty European payment methods with SEPA direct debit and return handling, retries that classify temporary from permanent failures, a dunning plan where intervals, actions and even automatic cancellation are configurable, plus an AI collections agent in beta and a receivables dashboard tracking collection performance. I found no public information on card updaters, bank-transfer reconciliation, a handover to an agency, or a documented migration path for taking subscriptions and payment tokens elsewhere; gateway choice is stated only as Frisbii or partner options. 2 8 12 13 14
The Skeptic
Dunning is genuinely built in: temporary failures such as an exceeded credit limit are retried automatically, permanent ones such as an expired card trigger dunning at once, intervals and actions are configurable down to automatic cancellation, SEPA direct debit via PPRO or EBICS comes with configurable return handling, and a beta AI collections agent contacts customers and records promises to pay under human oversight. One gateway covering 50+ European payment methods is included in all plans, with partner gateways named as an option on the media plan. I found no public information on card updaters, bank-transfer reconciliation, a handover to a collection agency, or any documented path for moving subscriptions and stored payment details to another provider — the question I always ask before signing. 2 8 12 13 14
Revenue reporting & accounting handoff
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How this is scored
What finance gets out of billing: MRR, ARR, churn and cohort reporting, revenue recognition and deferred revenue, the export or sync to the accounting system and to DATEV, CRM and data-warehouse integrations, an API and webhooks, and a complete export of customer and subscription data.
0 — No reporting and no export beyond downloading individual invoices.
3 — A revenue overview and a CSV export of invoices, with no subscription metrics and no accounting integration.
5 — Subscription metrics (MRR, churn) on a dashboard, an export or sync to at least one named accounting tool, and a documented API with webhooks.
8 — Revenue recognition with deferred revenue schedules, a DATEV export or booking-ready journal for the ledger, native CRM and accounting integrations named, MRR movements explainable per customer, and a full data export documented.
10 — Billing is the system of record for revenue: recognition to IFRS 15 / ASC 606 stated, month-end close supported with reconciled reports, data-warehouse sync, audit trail of every financial event, and a complete export of customers, subscriptions and invoices that a successor system can import.
The SaaS Founder
MRR, ARR and churn sit on dashboards alongside billing, receivables and customer-health views, and the accounting handoff is properly German: DATEV export with SKR03 and SKR04 charts, posting-key overrides, automatic debtor IDs, revenue accounts per tax country, tax rate and currency, and delivery to SFTP, OneDrive or Google Drive on daily, weekly or monthly intervals. API documentation with subscription events and a Salesforce app round it out. We found no public information on deferred-revenue schedules or revenue recognition, a complete export of customer and subscription data, or data-warehouse sync. 10 14 15
The Finance Lead
The DATEV export is what I would close the month with: SKR03 or SKR04 chart of accounts, EXTF format, per-transaction posting keys, automatic debtor IDs, and a separate revenue account per tax country, tax rate and currency, delivered monthly, weekly or daily and shippable to SFTP. MRR, ARR, churn and receivables sit on dashboards, subscription events are documented in the API, and the end of an invoice item's performance period can be exported per line. I found no public information on deferred revenue schedules, IFRS 15 recognition, or a complete export of customer and subscription data, so billing is not yet provably the system of record. 7 10 14 15
The Billing Engineer
Finance gets MRR, ARR and churn dashboards with retention KPIs and an AI forecasting add-on, plus a genuinely deep DATEV handoff: SKR03 or SKR04 chart selection, posting-key overrides, revenue accounts configurable per tax country, rate and currency with separate VAT accounts, automatic debtor IDs, EXTF or ASCII formats, and monthly, weekly or daily exports delivered to SFTP, Google Drive or OneDrive, alongside a documented API with subscription events and a Salesforce integration. We found no public information on deferred revenue schedules or recognition stated to IFRS 15 / ASC 606, MRR movements explained per customer, data-warehouse sync, or a complete export of customers, subscriptions and invoices that a successor system could import. 7 10 14 15
The Service-Business Owner
The DATEV handoff is what my tax adviser wants: SKR03 or SKR04, EXTF or ASCII formats, posting key overrides, automatic debtor IDs, revenue accounts per tax country, rate and currency, and delivery to Google Drive, OneDrive or my own SFTP on daily, weekly or monthly cycles. MRR, ARR and churn sit on dashboards with retention KPIs and a Salesforce integration is named, but we found no public information on deferred-revenue schedules or a complete export of customer and subscription data. 2 10 14 15
The Tax Adviser
MRR, ARR and churn dashboards sit on top of a genuinely deep DATEV export — SKR03/SKR04 selection, posting-key overrides, revenue accounts per tax country, rate and currency — schedulable daily, weekly or monthly to Google Drive, OneDrive or SFTP, with a named Salesforce integration and documented subscription events and API. I found no public information on deferred-revenue schedules or IFRS 15 recognition, though the exportable end-of-performance-period field shows period-based recognition is understood. 2 7 10 14 15
The Skeptic
Finance gets named dashboards — revenue with MRR and ARR, customer health with retention and churn, receivables with collection performance, and the full invoice lifecycle — plus a DATEV export documented in unusual depth: SKR03 or SKR04, EXTF or ASCII formats, overridable posting keys and accounts, automatic debtor IDs, revenue accounts per tax country, rate and currency, and delivery on monthly, weekly or daily intervals to SFTP, Google Drive or OneDrive. A documented API with subscription events and a Salesforce-native integration complete the handoff. I found no public information on deferred-revenue schedules, on a full export of customers, subscriptions and invoices a successor system could import, or on data-warehouse sync. 2 7 10 14 15
European sovereignty
panel opinion
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How this is scored
Who the contracting entity and the parent company are, where customer, invoice and payment data are hosted, and who the subprocessors are (hosting, payment providers, tax engines, email delivery). Independently sourced by the sovereignty pipeline; billing data is personal and financial at once, so the whole chain counts, not only the database.
0 — Non-EU vendor and contracting entity, hosting unstated, subprocessors unnamed, and no data processing agreement offered.
3 — A privacy policy and a data processing agreement exist, but hosting location is unstated or non-EU and the subprocessors are not listed.
5 — EU hosting available and an EU contracting entity or EU representative, but parts of the chain (tax engine, email, analytics, support) run through non-EU providers without a stated safeguard.
8 — EU hosting on named infrastructure, EU contracting entity, subprocessors listed with their locations, a data processing agreement published, and security certifications (ISO 27001, SOC 2) stated.
10 — Sovereign end to end and evidenced: European ownership, entity, hosting and every subprocessor, data export and deletion documented, and certifications published with their scope rather than implied.
The SaaS Founder
The contracting entities are German — Frisbii Germany GmbH in Frankfurt and Frisbii Media GmbH in Kempten, with register numbers and German VAT IDs — and a data processing agreement is published in four languages with a German data protection officer, GDPR clauses and standard contractual clauses for third-country providers. However, the hosting location of the core billing platform is not described on the captured pages: only the Salesforce-hosted app names its host, the marketing website runs on a US WordPress provider, and we found no public information on a platform subprocessor list or security certifications. 3 4 5
The Finance Lead
The contracting entities are German — Frisbii Germany GmbH registered in Frankfurt with a German VAT ID, and a data protection officer in Bad Vilbel — and a data processing agreement is published in four languages with GDPR commitments in the terms. Website subprocessors are listed with their locations and safeguards, but I found no public information on where the billing platform itself is hosted; the terms name Salesforce as subcontractor only for the Salesforce-deployed product, and no security certifications are stated. 3 4 5
The Billing Engineer
The contracting entities are German — Frisbii Germany GmbH in Frankfurt, registered in the commercial register, plus Frisbii Media GmbH in Kempten — a data processing agreement is published in English, German, Danish and French with a German data protection officer, and the website's subprocessors are listed with locations and safeguards such as standard contractual clauses and Data Privacy Framework listing. However, the captured pages leave the hosting of the core billing platform and its data residency unconfirmed — only the Salesforce-deployed product is described, hosted by Salesforce as a subcontractor — and we found no public information on security certifications such as ISO 27001 or SOC 2. 3 4 5
The Service-Business Owner
I like contracting with Frisbii Germany GmbH in Frankfurt — a German commercial register entry, a German data protection officer, a published data processing agreement in four languages, and standard contractual clauses with third-country providers plus some processing on servers in Germany and the EU. But we found no public information on where the core billing platform hosts customer, invoice and payment data, on the group's ownership, or on product-chain subprocessors beyond Salesforce hosting one module, so I cannot confirm my customers' data stays in Europe. 3 4 5
The Tax Adviser
The contracting entities are two German companies with a Frankfurt register number, there is a German data protection officer, a published data processing agreement in four languages, standard contractual clauses and DPF-listed providers for third-country transfers, and website subprocessors named with their locations. The hosting of the core billing platform is not confirmed on the captured pages — the privacy notice says only that in some cases data is processed on servers in Germany and the EU — and I found no public information on security certifications or a full platform subprocessor list. 3 4 5
The Skeptic
The contracting side is verifiably German — Frisbii Germany GmbH in Frankfurt with commercial register number and VAT ID, a German data protection officer, and a data processing agreement published in four languages — and deletion duties and the client's ownership of its data are written into the terms. But the captured pages do not say where the billing platform's customer, invoice and payment data are hosted: the privacy notice offers only that data is processed 'in some cases' on servers in Germany and the EU, the Salesforce-hosted app's region is unstated, and the subprocessors I could see named — Borlabs, doo, HubSpot, Google, Microsoft, Automattic — belong to the marketing website, not to the hosting, payment and email chain that touches billing data. I found no public information on security certifications such as ISO 27001 or SOC 2. 3 4 5
Pricing transparency
not rated — the vendor publishes no price
Show reasoningHide reasoning
How this is scored
Whether a buyer can compute the real annual cost from public pages alone: platform fee, percentage of billed revenue or per-invoice fees, which modules (revenue recognition, e-invoicing, tax, extra gateways) cost extra, overage above a revenue band, setup and minimum term, and the merchant-of-record fee where it applies.
0 — No public prices at all; every customer is a sales call.
3 — A starting price or a free tier exists, but how cost scales with billed revenue, invoices or modules is unclear.
5 — Tiers are public with their main inclusions and revenue bands, but at least one commonly needed piece (e-invoicing, revenue recognition, extra gateways, overage) is unpriced or "on request".
8 — Every tier priced publicly with its scaling rule (revenue percentage, per invoice, per subscriber), overage and add-ons listed, minimum term and VAT treatment stated.
10 — Complete price computability: annual cost derivable for a given billed revenue, invoice volume and module set, with every add-on, setup, support and payment or merchant-of-record fee and the cancellation and data-return terms published.
The SaaS Founder
Starter at €49/mo and Growth at €299/mo are published with a 0.95% charge on processed billing, seat counts, VAT treatment and cancellation terms, and the payment service standalone is €0.08 per transaction plus method-based fees — enough to compute cost on the two lower tiers. But Scale and Scale for Media are "Tailored pricing Talk to sales", the media plan's variable fees per subscription, transaction and users carry no figures, and merchant bank processing and customer/card import fees are referenced without amounts, so the real annual cost at the top end is not computable from public pages. 2
The Finance Lead
Starter at €49/mo and Growth at €299/mo are public with the scaling rule — a 0.95% charge on processed billing, with billing free for the first three months on Starter — plus VAT treatment and cancellation terms. Standalone payments are €0.08 per transaction plus payment-method fees that are not itemised in what I read, and both Scale tiers are tailored pricing on a sales call, with merchant bank processing and card import fees mentioned but unquantified. I can budget the lower tiers precisely but not compute a full annual cost at the top end. 2 5
The Billing Engineer
Starter at €49/mo and Growth at €299/mo are published with seat counts, a 0.95% charge on processed billing, VAT stated as additional to the advertised plan price, and cancellation terms of three months' notice on Starter. Both Scale tiers are quoted as tailored pricing with a talk-to-sales path, and merchant bank processing fees, per-payment-method fees and customer/card import fees are referenced but not quantified on the captured pricing page, so a real annual cost is not computable for larger volumes. 2 5
The Service-Business Owner
Starter at €49/mo with one seat and Growth at €299/mo with up to five seats are public, both with a 0.95% charge on processed billing, VAT treatment stated, a twelve-month term on Growth promotions and three months' cancellation notice on Starter, and the payment service standalone is quoted at €0.08 per transaction. The Scale tiers are tailored pricing behind a sales conversation, and merchant bank processing and customer/card import fees are named without amounts, so I cannot compute my full annual cost from public pages alone. 2 5
The Tax Adviser
Starter at €49/mo and Growth at €299/mo are public with inclusions and seat counts, the 0.95% charge on processed billing is stated, standalone gateway transactions are €0.08 each, and VAT exclusion plus a 3-month cancellation notice are published. But Scale and Scale for Media are tailored pricing on a sales conversation, the variable media fees per subscription, transaction and user are not quantified, and charges above the user limits sit in the ordering document rather than on the pricing page — so a buyer above Growth cannot compute an annual cost from public pages alone. 2 5
The Skeptic
The lower tiers are genuinely public: Starter at €49/mo with one seat, Growth at €299/mo with up to five seats, the scaling rule spelled out as a 0.95% charge on processed billing, standalone payments at €0.08 per transaction, and VAT treatment and the three-month cancellation notice stated. Above that, pricing becomes a conversation: Scale and Scale for Media carry 'Tailored pricing' behind a sales call, Scale for Media adds variable fees per subscription, transaction and users that the captured pages do not quantify, and merchant bank processing and customer/card import fees are deferred to a fee breakdown the pricing page references but does not show. A buyer can compute the entry cost; I could not compute the cost at the top end from these pages. 2 4 5
European sovereignty — proven facts
1 of 4 dimensions provenBuilt only from facts shown on the vendor's own pages. A dimension we could not prove is left open, not scored as zero.
| Legal entity | Not determined | — | uncited Report an error |
|---|---|---|---|
| Ownership | Not determined | — | uncited Report an error |
| Data residency | Not determined ⚠ unverified | — | uncited Report an error |
| Subprocessors | US CLOUD Act reach ⚠ unverified | 0/2 pts | 5 Report an error |
Questions about Frisbii (formerly billwerk+)
Is Frisbii (formerly billwerk+) European?
Yes. whats-best.ai classifies Frisbii (formerly billwerk+) as EU-Made.
Where does Frisbii (formerly billwerk+) store data?
Not stated on the vendor’s pages as of 26 Oct 2026.
Does Frisbii (formerly billwerk+) have a free plan?
Not stated on the vendor’s pages as of 26 Oct 2026.
What are the best alternatives to Frisbii (formerly billwerk+)?
As of 28 Oct 2026, the panel rates Chargebee (3.5/5), Younium (3.5/5) and Stripe Billing (3.5/5) highest among the other 12 Billing & Invoicing products evaluated. Ratings that look equal are rounded to half stars; the order uses the unrounded rating, then the name. The highest-rated European alternative is Younium (EU-Made). Ratings are the AI panel’s opinion, formed from public evidence: how scores are made. The full list, with European products first: Frisbii (formerly billwerk+) alternatives.
Where this could be wrong
- Evidence ages. The oldest capture behind this page is from 26 Oct 2026. Vendors change pricing and policies without notice; every fact reflects its source as of the capture date shown in the registry.
- Weak sourcing — Data residency. Not confirmed on the vendor’s own pages as captured.
- Weak sourcing — Subprocessors. This covers only the Salesforce-deployed product; the hosting of the core platform (e.g. Frisbii Billing, Frisbii Payment Gateway) is not described in these excerpts, and the server region for the Salesforce deployment is not stated.
- AI can misread a source. Extraction and judgement are automated; a citation guarantees traceability, not infallibility. If something here is wrong, say so — no account needed, every report is decided within 5 business days, and accepted corrections are published.
What we left out
A claim that does not survive our checks costs us the claim, not the page. This is what was taken off this one.
- 17 product facts could not be confirmed on the vendor’s page as captured and were left out of this page and of the panel’s material. Know more? Tell us
- 9 subprocessors facts could not be confirmed on the vendor’s page as captured and were left out of this page and of the panel’s material. Know more? Tell us
- 3 legal facts could not be confirmed on the vendor’s page as captured and were left out of this page and of the panel’s material. Know more? Tell us
- 2 compliance facts could not be confirmed on the vendor’s page as captured and were left out of this page and of the panel’s material. Know more? Tell us
- 1 hosting fact could not be confirmed on the vendor’s page as captured and was left out of this page and of the panel’s material. Know more? Tell us
- 1 integrations fact could not be confirmed on the vendor’s page as captured and was left out of this page and of the panel’s material. Know more? Tell us
- 1 pricing fact could not be confirmed on the vendor’s page as captured and was left out of this page and of the panel’s material. Know more? Tell us
- 1 sovereignty dimension could not be confirmed on the vendor’s own pages and is shown as unknown. Know more? Tell us
Sources (15)
The pages every claim on this page was read from — each one checked, dated, and kept verifiable.
- 1 Vendor homepage frisbii.com Checked 26 Oct 2026 Details →
- 2 Pricing page frisbii.com Checked 26 Oct 2026 Details →
- 3 Privacy policy frisbii.com Checked 26 Oct 2026 Details →
- 4 Legal notice frisbii.com Checked 26 Oct 2026 Details →
- 5 Terms of service frisbii.com Checked 26 Oct 2026 Details →
- 6 Plans, pricing models & subscription lifecycle — found from sitemap help.frisbii.com Checked 26 Oct 2026 Details →
- 7 Plans, pricing models & subscription lifecycle — found from sitemap help.frisbii.com Checked 26 Oct 2026 Details →
- 8 Invoices & e-invoicing compliance — found from sitemap help.frisbii.com Checked 26 Oct 2026 Details →
- 9 Invoices & e-invoicing compliance — found from sitemap help.frisbii.com Checked 26 Oct 2026 Details →
- 10 Cross-border VAT & tax handling — found from sitemap help.frisbii.com Checked 26 Oct 2026 Details →
- 11 Cross-border VAT & tax handling — found from sitemap help.frisbii.com Checked 26 Oct 2026 Details →
- 12 Payment collection, dunning & portability — found from sitemap docs.frisbii.com Checked 26 Oct 2026 Details →
- 13 Payment collection, dunning & portability — found from sitemap help.frisbii.com Checked 26 Oct 2026 Details →
- 14 Revenue reporting & accounting handoff — found from sitemap help.frisbii.com Checked 26 Oct 2026 Details →
- 15 Revenue reporting & accounting handoff — found from sitemap help.frisbii.com Checked 26 Oct 2026 Details →