# Frisbii (formerly billwerk+) — Billing & Invoicing

Frisbii (formerly billwerk+) by Frisbii Germany GmbH holds a panel rating of 3/5 from 6 AI judges (category median 3/5), as of 2026-10-28. Provenance: EU-Made; sovereignty: 1 of 4 dimensions proven.

- Vendor: Frisbii Germany GmbH (https://frisbii.com)
- Category: [Billing & Invoicing](https://whats-best.ai/software/billing.md)
- Provenance (editorial classification): EU-Made
- Canonical page: https://whats-best.ai/software/billing/frisbii
- Alternatives: https://whats-best.ai/software/billing/frisbii/alternatives ([markdown](https://whats-best.ai/software/billing/frisbii/alternatives.md))
- Data as of: 2026-10-29 · evaluated 2026-10-28 · oldest source captured 2026-10-26

**AI-generated.** Every score, rationale and verdict here is written by a panel of AI judges from public evidence — an analysis, not a hands-on test. Every fact quotes the vendor page it was read from. No score can be bought. How scores are made: https://whats-best.ai/methodology

## 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) [S2]

## 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.

## Scores by judge and criterion

Scores out of 5, each judge scoring independently against the published rubric (v1). "n/r" = not rated: the vendor publishes no price, or the judge found no public information on that criterion.

| Criterion | The SaaS Founder | The Finance Lead | The Billing Engineer | The Service-Business Owner | The Tax Adviser | The Skeptic |
| --- | --- | --- | --- | --- | --- | --- |
| Plans, pricing models & subscription lifecycle | 3.5/5 | 3.5/5 | 3.5/5 | 3/5 | 3/5 | 3.5/5 |
| Invoices & e-invoicing compliance | 3.5/5 | 3.5/5 | 3/5 | 3.5/5 | 3.5/5 | 3/5 |
| Cross-border VAT & tax handling | 3.5/5 | 3/5 | 3/5 | 3/5 | 3/5 | 3/5 |
| Payment collection, dunning & portability | 3.5/5 | 3/5 | 3/5 | 3.5/5 | 3/5 | 3/5 |
| Revenue reporting & accounting handoff | 3.5/5 | 3.5/5 | 3.5/5 | 3.5/5 | 3.5/5 | 3.5/5 |
| European sovereignty | 2/5 | 2/5 | 2/5 | 2/5 | 2.5/5 | 2/5 |
| Pricing transparency | n/r | n/r | n/r | n/r | n/r | n/r |
| **Weighted verdict** | **3.5/5** | **3/5** | **3/5** | **3/5** | **3/5** | **3/5** |

### The judges

- **The SaaS Founder** (v1.0): Runs a twelve-person SaaS that sells to companies in nine EU countries and is about to add a usage-based tier. Wants plans, trials and price changes without a developer sprint, reverse charge that is right without thinking about it, failed cards retried before they turn into churn, and a billing bill that does not grow faster than revenue.
- **The Finance Lead** (v1.0): Closes the month for a software company with eight million euros of recurring revenue. Wants MRR that reconciles with the ledger, deferred revenue scheduled rather than estimated in a spreadsheet, a journal or DATEV export the accountants can book without retyping, and dunning that stops before it reaches a key account.
- **The Billing Engineer** (v1.0): Wires billing into the product and gets paged when a webhook goes missing. Wants a documented API for usage events, idempotent webhooks, entitlements the app can read, a sandbox that behaves like production, and a migration path that moves subscriptions and payment tokens out again if the company outgrows the tool.
- **The Service-Business Owner** (v1.0): Runs an IT service company with two hundred maintenance contracts, hosting packages and monthly retainers, all billed to German businesses. Wants contract terms and price increases handled by the system, SEPA direct debit with mandates, e-invoices that public-sector customers accept, a DATEV export for the tax adviser, and customer data kept in Europe.
- **The Tax Adviser** (v1.0): Advises software and subscription businesses and sees what their billing tools get wrong at the year-end audit. Wants sequential numbering and credit notes instead of edited invoices, XRechnung and ZUGFeRD now that the B2B e-invoice is mandatory, VAT IDs checked before reverse charge is applied, and a merchant of record that says in writing which tax it owes.
- **The Skeptic** (v1.0): Has seen "automated recurring revenue" turn into a tool that takes a percentage of every euro billed and keeps the payment tokens when the customer leaves. Reads "e-invoicing ready" that means a PDF, "global tax compliance" with no word on who is liable, merchant-of-record terms that let the vendor change fees at will, and subprocessor lists that stop at the hosting provider — and asks what leaving would cost.

## European sovereignty — proven facts

Built only from facts on the vendor's own pages; a dimension we could not prove is left open, never scored as zero. Headline: 1 of 4 dimensions proven.

| Dimension | Finding | Points | Source |
|---|---|---|---|
| Legal entity | Not determined | — | — |
| Ownership | Not determined | — | — |
| Data residency | Not determined | — | — |
| Subprocessors | US CLOUD Act reach | 0/2 | [S5] |

## Key facts

Each fact is the vendor's own statement, cited to the source page it was read from ([S*n*] → Sources).

**Compliance**
- Aml: AML · CTF · sanctions · tax fraud · data protection [S5]
- DPA available: yes [S4]
- DPA links: English · German · Danish · French · yes [S5]
- Dpf adequacy: US adequacy based on EU-US Data Privacy Framework, adopted July 2023 [S3]
- Essential cookies consent: no [S3]
- GDPR: yes [S5]
- Third country safeguards: yes · yes [S3]

**Data**
- Customer data deletion: deleted after order completion or relationship termination, subject to statutory retention [S3]
- Google analytics retention: 7 [S3]
- Minimisation retention: store only as long as necessary or legally required, then block or delete [S3]
- Newsletter retention: until unsubscribe, then deleted [S3]
- Ownership: yes [S5]
- Registration fields: first name · last name · email address [S5]
- Server log collection: IP address · host name · date/time of request · timezone · requested page · HTTP status · data volume · referrer · pages accessed · browser info · OS info · JS-derived screen/browser data [S3]

**Hosting**
- Salesforce: subcontractor · Salesforce [S5]
- Wordpress: WordPress · USA · Automattic Inc. [S3]

**Integrations**
- Accounting export settings: Account assignment settings (Settings > Accounting > Accounts) and export settings (Settings > Accounting > Export Settings) available [S10]
- API documentation: yes [S7]
- Client responsibility: yes · CLIENT [S5]
- Datev revenue account config: Separate financial accounting revenue account configurable per combination of tax country, tax rate and currency, plus optional VAT account [S10]
- Export performance period field: End of performance period of an invoice item exportable as additional field, usable with 'Output per invoice item' [S10]
- Google drive: yes [S15]
- One drive: yes [S15]
- Payment gateway options: Frisbii or partner payment gateway options (media plan) [S2]
- Sftp: yes [S15]
- Sftp whitelist ips: 18.198.112.162 · 3.70.163.236 [S15]

**Legal**
- Brand merger: Billwerk+, plenigo and Sofacto are now Frisbii [S4]
- DPA available: yes [S2]
- EU odr platform: http://ec.europa.eu/consumers/odr · yes [S4]
- Germany address: 60329 · Frankfurt am Main · Frisbii Germany GmbH · Mainzer Landstraße 51 [S4]
- Germany content responsible: Silke Hoersch, CMO [S4]
- Germany register: Frankfurt am Main · HRB 103534 [S4]
- Germany representatives: Gregory Herbert, CEO · Silke Hoersch, CMO [S4]
- Germany VAT id: DE303438468 [S4]
- Media address: 87435 · Kempten · Frisbii Media GmbH · Königstraße 4 [S4]
- Media register: Kempten · HRB 15754 [S4]
- Media VAT id: DE291948599 [S4]
- Operator entities: Frisbii Germany GmbH · Frisbii Media GmbH · Frisbii Germany GmbH [S4]
- Privacy contact: contact@frisbii.com [S3]

**Pricing**
- Acquirer agreement: yes [S2]
- Additional fees: merchant bank processing fees and customer/card import fees apply [S2]
- Free trial: yes [S4]
- Growth price: 299 · monthly · EUR [S2]
- Growth promo terms: Growth promo price for qualifying new merchants; processed billing fees from start of 12-month contract [S2]
- Growth seats: 5 [S2]
- Gtcs amendment notice: 30 [S5]
- Overage: yes · yes [S5]
- Pay standalone fee: additional fees based on payment methods · 0.08 [S2]
- Plan availability: Growth · Enterprise [S15]
- Processed billing fee: 0.95 · Growth · Scale [S2]
- Scale cancellation: per individual sign-up agreement terms [S2]
- Scale media fees: variable fees per subscription, transaction and users [S2]
- Scale media price: tailored pricing, contact sales [S2]
- Scale price: tailored pricing, contact sales [S2]
- Self service trial: yes [S5]
- Starter cancellation: Starter · 3 [S2]
- Starter price: 49 · monthly · EUR [S2]
- Starter promo: 0.95 · 3 [S2]
- Starter seats: 1 [S2]
- VAT: yes [S2]

**Product**
- Account overwrite: yes [S15]
- Account penalties: warning · content removal · temporary deactivation · termination [S5]
- Active state: Active: access to all services, automatic renewals enabled, billing per plan [S7]
- Active substate flags: api · is_cancelled · in_trial · has_started [S7]
- Add ons: Add-ons sell extra products alongside the base plan [S6]
- Additional costs: One-off custom charges attachable to a subscription [S6]
- Age restriction: 18 · yes [S5]
- Alerting feature: Alerting feature sends automatic notifications when important dashboard events occur [S14]
- Alternate revenue export: yes [S15]
- Automatic debtor ids: yes [S15]
- Automatic invoice numbers: yes [S8]
- Availability: maintenance periods · 24/7 [S5]
- Billing dashboard: Billing Dashboard shows full invoice lifecycle including failed, canceled, pending, dunning, refunded states [S14]
- Canceled state: Canceled subscriptions expire at end of current billing period; can be set at creation or via Cancel button [S7]
- Capabilities: contract management · invoicing/billing · integration into payment service providers [S5]
- Chart of accounts types: SKR03 · SKR04 [S15]
- Collections agent beta: yes [S13]
- Collections agent capabilities: contacts customers · answers replies · records promises to pay · user oversight and intervention [S13]
- Collections agent purpose: AI agent that helps recover unpaid invoices [S13]
- Collections agent setup: Policy · Guidance · Template setup [S13]
- Configurable tax rates key date: Sales tax rates for Germany can be configured from a key date; rates 16%/5% and key dates 01.07.2020 and 01.01.2021 preset [S10]
- Credit: One-off credit deduction attachable to a subscription [S6]
- Credit note definition: A credit note is an accounting document that cancels an invoice fully or partially; the original invoice remains unchanged [S9]
- Credit note detail view: Clicking a credit note opens a detail view with further information [S9]
- Credit note file type: File type: PDF or PDF+XML when e-invoicing is enabled [S9]
- Credit note list columns: Credit note list columns: invoice, customer, debitor ID, subscription, amount, invoice number, created, cost center, order number, file type [S9]
- Credit note list filtering: Users can add filters and show/hide columns in the credit notes list [S9]
- Credit note list navigation: Credit notes list is reached via Payments → Credit notes [S9]
- Credit note not refund: A credit note only documents the correction and does not move money [S9]
- Credit note number configurable: Credit note number configurable under Configurations > Invoices [S9]
- Credit note number prefix: yes · CN [S8]
- Credit note own accounting number: Credit note has its own accounting number [S9]
- Credit note own sequence: yes · yes [S8]
- Credit note pdf download: Credit note PDF download only available if invoice PDF creation is enabled [S9]
- Credit note subscription invoices only: Credit notes can only be created for subscription invoices [S9]
- Credit note title options: Gutschrift · Stornorechnung [S8]
- Customer health dashboard: Customer health dashboard provides retention and churn KPIs [S14]
- Datev export: yes [S15]
- Datev header formats: EXTF · ASCII [S15]
- Description: Recurring billing platform for payment, billing, and subscription management [S4]
- Dunning control: yes [S12]
- Dunning reminder emails: yes · yes [S12]
- Dunning smart retry: yes · yes · yes [S12]
- E invoicing applies all pdfs: invoices · credit_notes · yes [S8]
- E invoicing factur x: hybrid · Factur-X 1.0.07 / ZUGFeRD 2.3 · EN16931 · yes [S8]
- EU b2c oss assumption: yes [S15]
- EU withdrawal button: EU Withdrawal Right button for 14-day cancellation [S6]
- Events free: yes [S3]
- Expired state: All services stopped; cannot be renewed or reactivated; final state [S7]
- Export formats: DATEV · CSV [S15]
- Export intervals: monthly · weekly · daily [S15]
- Field configuration options: customer_handle · subscription_handle · merchant_vat_id · invoice_handle · debtor_id · customer_email · cost_center · purchase_order_number [S8]
- Footer auto column width: yes · no [S8]
- Footer customization: yes [S8]
- Footer din5008 warning: 4 [S8]
- Footer lines limit: 8 [S8]
- Growth features: Growth includes everything in Starter plus automated invoicing, dunning, multi-region tax handling, usage-based/hybrid pricing, contract management, self-service portal, full analytics suite [S2]
- Invoice correction tax rate: Invoices can be corrected to subsequently apply the applicable VAT rate [S10]
- Invoice email attachment: yes [S8]
- Invoice handle prefix: yes · inv [S8]
- Invoice number prefix: yes · IN [S8]
- Invoice number reset: monthly · yearly · none [S8]
- Ip custom dev: FRISBII [S5]
- License type: non-exclusive, non-sublicensable, non-transferable, worldwide, limited, revocable · internal business purposes [S5]
- Maintenance notice: security risk · 8 [S5]
- Merge tags metadata support: yes [S8]
- Modules: Frisbii Billing · Frisbii Media · Frisbii App for Salesforce · Frisbii Payment Gateway [S5]
- Newsletter double optin: yes · yes [S3]
- No pdf for charges: no [S8]
- Non EU countries list: Suisse · Norvège · Islande · Royaume-Uni [S11]
- Non EU default text: Outside the scope of VAT. · yes [S11]
- Non EU VAT exemption: 0 · yes · yes [S11]
- Non renewing state: NON-RENEWING covers cancelled-to-expire, reached end date, or completed limited billing cycles [S7]

**Subprocessors**
- Borlabs: Borlabs GmbH · Germany · cookie consent tool [S3]
- Doo: doo GmbH · Germany · event management and registration · yes [S3]
- Google tag manager: Google Tag Manager · tag management for web tracking tools · Google Ireland Ltd. [S3]
- Hubspot: HubSpot · USA/Ireland · newsletter service provider · yes · yes [S3]
- Microsoft advertising: Microsoft Advertising · advertising analysis, personalised advertising, success measurement · Microsoft Ireland Operations Limited [S3]
- Wpml: WPML · language settings · 1 [S3]

**Support**
- AI assistant: yes [S5]
- Escalation key user: yes [S5]
- Hours: Monday to Friday · CET · 09:00-17:00 · yes [S5]
- Key account manager: Key Account Manager requires minimum ACV or dedicated package [S2]
- Knowledge base: Knowledge Base, Technical Documentation, Trust Center and Status pages available [S2]
- Resources: Knowledge Base · Technical Documentation · Trust Center · Status [S4]
- SLA: uptime commitments · response times · remedies · yes [S5]
- Term change notice: four weeks [S5]

57 more facts on the canonical page: https://whats-best.ai/software/billing/frisbii

## Questions

### 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)](https://whats-best.ai/software/billing/chargebee), [Younium (3.5/5)](https://whats-best.ai/software/billing/younium) and [Stripe Billing (3.5/5)](https://whats-best.ai/software/billing/stripe-billing) 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](https://whats-best.ai/software/billing/younium) (EU-Made). Ratings are the AI panel’s opinion, formed from public evidence: [how scores are made](https://whats-best.ai/methodology#ordering). The full list, with European products first: [Frisbii (formerly billwerk+) alternatives](https://whats-best.ai/software/billing/frisbii/alternatives).

## Head-to-head

- [Frisbii (formerly billwerk+) vs Stripe Billing](https://whats-best.ai/compare/frisbii-vs-stripe-billing.md)
- [Frisbii (formerly billwerk+) vs Fakturia](https://whats-best.ai/compare/fakturia-vs-frisbii.md)

## What this page leaves out

- 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.
- 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.
- 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.
- 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.
- 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.
- 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.
- 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.
- 1 sovereignty dimension could not be confirmed on the vendor’s own pages and is shown as unknown.

## Sources

- [S1] Vendor homepage: https://frisbii.com/ (checked 2026-10-26)
- [S2] Pricing page: https://frisbii.com/recurring-billing-pricing/ (checked 2026-10-26)
- [S3] Privacy policy: https://frisbii.com/data-protection-notice/ (checked 2026-10-26)
- [S4] Legal notice: https://frisbii.com/imprint/ (checked 2026-10-26)
- [S5] Terms of service: https://frisbii.com/terms-and-conditions/ (checked 2026-10-26)
- [S6] Plans, pricing models & subscription lifecycle — found from sitemap: https://help.frisbii.com/docs/subscriptions (checked 2026-10-26)
- [S7] Plans, pricing models & subscription lifecycle — found from sitemap: https://help.frisbii.com/docs/subscription-states (checked 2026-10-26)
- [S8] Invoices & e-invoicing compliance — found from sitemap: https://help.frisbii.com/docs/de/e-invoicing-factur-x-zugferd (checked 2026-10-26)
- [S9] Invoices & e-invoicing compliance — found from sitemap: https://help.frisbii.com/docs/de/credit-notes-interface (checked 2026-10-26)
- [S10] Cross-border VAT & tax handling — found from sitemap: https://help.frisbii.com/frisbii-transform/docs/reduction-of-sales-tax-rates-in-germany-in-2020-transferring-data-from-frisbii-transform-to-datev (checked 2026-10-26)
- [S11] Cross-border VAT & tax handling — found from sitemap: https://help.frisbii.com/docs/fr/reverse-charge (checked 2026-10-26)
- [S12] Payment collection, dunning & portability — found from sitemap: https://docs.frisbii.com/docs/dunning-plan (checked 2026-10-26)
- [S13] Payment collection, dunning & portability — found from sitemap: https://help.frisbii.com/docs/collections-agent (checked 2026-10-26)
- [S14] Revenue reporting & accounting handoff — found from sitemap: https://help.frisbii.com/docs/performance-analytics-reporting (checked 2026-10-26)
- [S15] Revenue reporting & accounting handoff — found from sitemap: https://help.frisbii.com/docs/accounting-export (checked 2026-10-26)

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Cite as: whats-best.ai, "Frisbii (formerly billwerk+) — Billing & Invoicing", AI panel analysis, as of 2026-10-29. https://whats-best.ai/software/billing/frisbii

Corrections: https://whats-best.ai/correct/983?target=page