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 Skeptic
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.
Fakturia
This judge's pick
Frisbii (formerly billwerk+)
Criterion by criterion
Plans, pricing models & subscription lifecycle
Fakturia
The lifecycle on paper is real: minimum terms, notice periods with automatic deadline calculation, trials that convert or terminate automatically, mid-period upgrades and downgrades with day-exact proration, and a white-label customer portal whose cancellation button follows §312k BGB. Usage-based billing and multiple currencies appear in the feature list, but we found no public information on usage metering through the API, quote-to-subscription conversion, price books, or a versioned subscription history per customer.
Frisbii (formerly billwerk+)
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.
Invoices & e-invoicing compliance
Fakturia
ZUGFeRD and XRechnung creation with the XML embedded in a readable PDF, revision-safe GoBD archiving, cancellations and corrections booked as counter-entries rather than edits, and the German 2025 B2B e-invoicing duty addressed make a credible German invoicing record. We found no public information on Peppol transmission, sequential numbering, EN 16931 conformance, or a Verfahrensdokumentation, so the formats are evidenced while the transmission channels and audit scaffolding are not.
Frisbii (formerly billwerk+)
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.
Cross-border VAT & tax handling
Fakturia
A VAT ID check, reporting for both the Zusammenfassende Meldung and MOSS/OSS, and the vendor's own guidance on reverse-charge bookings put cross-border VAT on the map. We found no public information on automatic VAT rates per country and product type, on VIES validation by name, or on stored evidence of customer location.
Frisbii (formerly billwerk+)
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.
Payment collection, dunning & portability
Fakturia
Dunning is documented in detail — automatic, unlimited escalation levels with individual texts per level, the original invoice attached, and returned direct debits processed via finAPI — and the seller chooses between SEPA self-collection and Stripe, Adyen, Unzer or PayPal. We found no public information on automatic retries or card-account updaters, service-suspension rules, a handover to a collection agency, or a documented path for moving stored payment details to another provider.
Frisbii (formerly billwerk+)
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.
Revenue reporting & accounting handoff
Fakturia
This is the strongest area: a DATEV connection certified since 2024 on Buchungsdatenservice 2.0, invoice PDFs pushed together with the booking records, automatic passive revenue deferral with time-proportional release, a Lexware CSV export, HubSpot, webhooks and a documented REST API with OpenAPI specification. The SaaS metrics side is undocumented — we found no public information on MRR, ARR or churn reporting, which is what a finance team will ask for next.
Frisbii (formerly billwerk+)
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.
European sovereignty
Fakturia
German hosting in a TÜV-certified Nuremberg data centre with the stated "Keine Datenweitergabe in Drittstaaten", a privately held German GmbH under HRB 233747 at Amtsgericht München, private-cloud operation as an option, and return-and-deletion duties after termination give this more European substance than most of the field. The visible chain stops short of the database: the privacy policy names only website tooling — HubSpot and Defiant in the US among them — while the terms require a data processing agreement without publishing one, and we found no public information on a product-level subprocessor list or ISO 27001/SOC 2 certification.
Frisbii (formerly billwerk+)
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.
Pricing transparency
Fakturia
The FLEX series is publicly computable: "0 € monatliche Grundgebühr" with "1,9% mtl. Nettoumsatz-Gebühr" (FLEX two: "2,4% mtl. Nettoumsatz-Gebühr"), "Jeder weitere Benutzer 25,- € / Monat", "0,004 € / Aufruf" beyond 7.500 API calls a month, all prices net of VAT, monthly cancellable with four weeks' notice, plus an optional 1.200 EUR onboarding. The Business and Enterprise tariffs — the ones with the full feature set and unlimited API — are priced per individual order sheet, and a switch from FLEX to Business is only possible after 36 months, so read that gap before signing.
Frisbii (formerly billwerk+)
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.
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.