As of 28 Oct 2026, the panel rates Fakturia 3.5/5 and Frisbii (formerly billwerk+) 3/5 in Billing & Invoicing. Weighted by what each judge cares about, 6 of the 6 judges pick Fakturia and 0 pick Frisbii (formerly billwerk+). Fakturia scores higher on 4 of 6 criteria (European sovereignty, Payment collection, dunning & portability, Plans, pricing models & subscription lifecycle, plus 1 more). Frisbii (formerly billwerk+) scores higher on 1 of 6 criteria (Cross-border VAT & tax handling). Provenance — Fakturia: EU-Made; Frisbii (formerly billwerk+): EU-Made. Ratings are the AI panel’s opinion, formed from public evidence: how scores are made.
Fakturia and Frisbii land close on the billing core. Revenue and accounting handoff is level at 7.0 versus 7.0, with 6 tie votes; subscription engine (6.8 vs 6.7; 2 lean Fakturia, 1 leans Frisbii, 3 tie), invoicing compliance (6.8 vs 6.7; 1 leans Fakturia, 5 tie) and collections and dunning (6.5 vs 6.3; 1 leans Fakturia, 5 tie) barely separate them. Frisbii's one criterion lead is tax handling, 6.2 vs 5.8 — 2 judges lean Frisbii, 4 tie — on documented automatic VAT by customer country. The wider gaps are sovereignty (6.5 vs 4.2) and pricing transparency (6.7 vs 5.5), where 6 judges lean Fakturia, 0 lean Frisbii and 0 tie; Fakturia publishes prices, Frisbii publishes none. Weighted totals run Fakturia 6.1 to 6.9 against Frisbii 5.9 to 6.7; four judges' totals are on record, Fakturia higher in each — yet the criterion splits mean no single verdict falls out.
Choose Fakturia if
You need published prices before you can shortlist a vendor — Fakturia publishes prices, Frisbii publishes no prices, and 6 judges lean Fakturia on pricing transparency (6.7 vs 5.5).
Your procurement requires the vendor's legal jurisdiction on record — Fakturia's sovereignty attributes list its legal entity in Germany, Frisbii's jurisdiction is recorded as unknown, and 6 judges lean Fakturia on sovereignty (6.5 vs 4.2).
Your German B2B subscription model makes the subscription engine the deciding criterion — 2 judges lean Fakturia, 1 leans Frisbii, 3 tie (6.8 vs 6.7).
Your finance team weights invoicing compliance and collections and dunning most — each criterion has 1 judge leaning Fakturia and 5 tie (6.8 vs 6.7 and 6.5 vs 6.3).
Choose Frisbii (formerly billwerk+) if
You sell across countries and need VAT applied automatically by customer country — Frisbii documents this, while the judges found no public information on automatic VAT rates per country for Fakturia; 2 judges lean Frisbii on tax handling, 0 lean Fakturia, 4 tie (6.2 vs 5.8).
Tax handling carries the heaviest weight in your decision — it is the one criterion where Frisbii leads on the mean, 6.2 to 5.8.
Your subscriptions pass through many distinct lifecycle states — Frisbii documents seven, and 1 judge leans Frisbii on the subscription engine (2 lean Fakturia, 3 tie).
Read this comparison as one judge. Each weighs the same scores by what they care about.
The SaaS Founder
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.
Fakturia
This judge's pick
Frisbii (formerly billwerk+)
Criterion by criterion
Plans, pricing models & subscription lifecycle
Fakturia
The captured feature pages show free trials with automatic conversion, upgrades and downgrades with day-exact proration, minimum terms with automatic renewal and notice-period calculation, coupons, and a whitelabel self-service portal with a cancellation button under § 312k BGB — that is plans, price changes and cancellations without a developer sprint, which is exactly what I run. Usage-based billing, multi-currency and multi-language are listed in the entry FLEX tier, but metering through an API, quotes that convert into subscriptions and price books are not described on the pages I read.
Frisbii (formerly billwerk+)
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.
Invoices & e-invoicing compliance
Fakturia
ZUGFeRD and XRechnung creation is documented as law-conform since 2019, produced as hybrid PDFs with the XML embedded, cancellations and corrections pass as counter-bookings, GoBD-conform revision-safe archiving is stated, and the German B2B e-invoicing duty from 2025 is addressed directly. Sequential numbering, Peppol transport and the e-invoicing mandates of other EU countries are not covered on the pages I read, which is what keeps me from putting my whole nine-country invoice flow on it.
Frisbii (formerly billwerk+)
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.
Cross-border VAT & tax handling
Fakturia
The accounting-export page names reporting for the Mini-One-Stop-Shop (MOSS/OSS) and the Zusammenfassende Meldung, and a VAT-ID check appears as an extra in the FLEX two tier; a blog article walks through reverse-charge bookings. For selling into nine countries I still miss documented automatic VAT per country and product type, a named VIES validation, and who keeps the evidence of customer location.
Frisbii (formerly billwerk+)
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.
Payment collection, dunning & portability
Fakturia
Collection runs across named providers — SEPA, Stripe, Adyen, Unzer or PayPal, with direct debits either self-collected or handed to a provider — and the dunning pages show unlimited escalation levels with individual texts, the original invoice attached, and immediate email delivery in every tariff, with returns processed automatically via finAPI account reconciliation. Smart retries of failed cards, card updaters, a collection-agency handover and recovery reported per step are not described on the pages I read, and that retry gap is where my churn would leak.
Frisbii (formerly billwerk+)
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.
Revenue reporting & accounting handoff
Fakturia
The DATEV connection has been certified since 2024 over the Buchungsdatenservice 2.0 with invoice PDFs and booking records pushed together, passive revenue deferral is calculated automatically (the vendor's own example splits a 1,200 EUR annual fee into 200 EUR in the first month and 100 EUR in each following month), and HubSpot, Lexware, Zapier, a REST API with OpenAPI and webhooks on contract, payment, cancellation and dunning events are all named. I found no public information on MRR, churn or cohort reporting, so I could not run my board pack from it.
Frisbii (formerly billwerk+)
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.
European sovereignty
Fakturia
Hosting sits in a TÜV-certified data centre in Nuremberg with the stated position that no data is passed to third countries, the contracting entity is the German Luminea IT Services GmbH (Amtsgericht München, HRB 233747) under German law and in private shareholder ownership, the terms make a data-processing agreement obligatory and document return and deletion after termination. The privacy policy names website subprocessors including US providers (HubSpot chat and marketing, Wordfence with standard contractual clauses stated), and the optional Stripe and PayPal integrations carry US exposure with Adyen and Unzer as EU alternatives; I found no public information on ISO 27001 or SOC 2 certification or a full product-chain subprocessor list.
Frisbii (formerly billwerk+)
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.
Pricing transparency
Fakturia
The FLEX series is unusually computable: 0 € base fee with a 1,9% monthly net-revenue fee (2,4% in FLEX two), 3 users included and each further user at 25,- € per month, 7.500 API calls included and further calls at 0,004 €, prices net plus statutory VAT, monthly cancellation with four weeks' notice, and a 1.200 EUR one-time optional onboarding. What I cannot compute from the captured pages are the prices of the Business and Enterprise tariffs, and the stated switch from FLEX to Business only after 36 months, with no direct data migration into Enterprise, is a constraint I have to price in.
Frisbii (formerly billwerk+)
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.
Sovereignty, side by side
Dimension
Fakturia
Frisbii (formerly billwerk+)
Legal entity
Not determined
Not determined
Ownership
Not determined
Not determined
Data residency
Not determined
Not determined
Subprocessors
US CLOUD Act reach
US CLOUD Act reach
Facts, side by side
Only facts both products carry under the same definition — anything else would not be a fair row.
Questions about Fakturia and Frisbii (formerly billwerk+)
Which is better, Fakturia or Frisbii (formerly billwerk+)?
As of 28 Oct 2026, the panel rates Fakturia higher: 3.5/5 against 3/5. Weighted by what each judge cares about, 6 of the 6 judges pick Fakturia and 0 pick Frisbii (formerly billwerk+). Which one fits depends on the criteria that matter to you; the table on this page shows both side by side, and each judge’s reading has its own page. Both were scored by the same AI bench under the same rubric, from public evidence only, as the methodology describes.
Is Fakturia or Frisbii (formerly billwerk+) European?
Fakturia is European (EU-Made). Frisbii (formerly billwerk+) is European (EU-Made). Provenance is read from each company’s own legal pages: who builds it and who owns it.