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 Service-Business Owner
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.
Fakturia
This judge's pick
Frisbii (formerly billwerk+)
Criterion by criterion
Plans, pricing models & subscription lifecycle
Fakturia
This is the core of my contract business: minimum terms, automatic renewal, notice periods and exact service periods per invoice line are configurable on the contract, upgrades and downgrades are prorated to the day, and a whitelabel self-service portal lets customers manage contracts and payment methods and cancel through a button built to German law. Usage-based billing, trials with automatic conversion, discount codes and multiple currencies are listed as features; I found no public information on metering through an API, quotes that convert into subscriptions, or a per-customer subscription history.
Frisbii (formerly billwerk+)
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.
Invoices & e-invoicing compliance
Fakturia
XRechnung and ZUGFeRD are created automatically and described as law-conform since 2019, which is what my public-sector and business customers expect, and GoBD-conform revision-safe archiving is stated with corrections transferred as counter-bookings instead of edits. The German B2B e-invoicing obligation from 2025 is addressed and invoice data with documents goes to DATEV. I found no public information on Peppol transmission, sequential invoice numbering, or a Verfahrensdokumentation.
Frisbii (formerly billwerk+)
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.
Cross-border VAT & tax handling
Fakturia
The pages show reporting for OSS/MOSS and for the German ZM summary report covering EU supplies, and a VAT ID check (USt-ID-Prüfung) is included from the second Flex tariff upward; a vendor article also walks through reverse-charge booking for EU services. I found no public information on automatic VAT rates per country and product type, VIES validation, or US sales tax.
Frisbii (formerly billwerk+)
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.
Payment collection, dunning & portability
Fakturia
Collection runs across named providers — SEPA, Stripe, Adyen, Unzer or PayPal — with direct debits either collected through my own banking software or handed automatically to a provider, and multi-step automatic dunning with unlimited escalation levels and individual texts is included in every tariff. Return debits are processed automatically through the finAPI bank match and bookings can go to individual debtor accounts. I found no public information on automatic payment retries, card updaters, a handover to a collection agency, or exporting stored payment details to another provider.
Frisbii (formerly billwerk+)
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.
Revenue reporting & accounting handoff
Fakturia
This is where the product shines for a German service firm: a certified direct connection to the DATEV computing centre since 2024 via the Buchungsdatenservice 2.0 standard, automatic passive revenue deferral with a worked example splitting a 1.200 EUR annual fee into 200 EUR and eleven monthly 100 EUR amounts, plus a Lexware export and a JSON data export. A REST API with OpenAPI specification and webhooks for contract start, payment, cancellation and dunning is documented, and HubSpot and Mailchimp are named integrations. I found no public information on MRR, churn or cohort metrics.
Frisbii (formerly billwerk+)
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.
European sovereignty
Fakturia
The contracting entity is a German GmbH registered at Amtsgericht München (HRB 233747), privately owned without foreign investors, hosting runs in a TÜV-certified data centre in Nuremberg with the statement that no data is passed to third countries, and the terms require a data processing agreement and provide for return and deletion after termination. However, the privacy policy names US providers such as HubSpot and Wordfence for the vendor's own website, Stripe and PayPal are optional payment integrations, and I found no public information on ISO 27001 or SOC 2 certification or a formal subprocessor list for the platform chain.
Frisbii (formerly billwerk+)
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.
Pricing transparency
Fakturia
The Flex series is fully computable: "0 € monatliche Grundgebühr" with a "1,9% mtl. Nettoumsatz-Gebühr" in Flex One, "2,4% mtl. Nettoumsatz-Gebühr" in Flex two, "Jeder weitere Benutzer 25,- € / Monat", "zusätzliche API-Aufrufe mit 0,004 € / Aufruf", all prices net plus VAT, monthly plans cancellable with four weeks' notice, an optional Premium Onboarding at 1.200 EUR one-time, and a free sandbox without credit card. What I cannot compute from the pages is the Business and Enterprise series, for which I found no public prices — and the switch from Flex to Business is only possible after 36 months.
Frisbii (formerly billwerk+)
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.
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.