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 Tax Adviser
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.
Fakturia
This judge's pick
Frisbii (formerly billwerk+)
Criterion by criterion
Plans, pricing models & subscription lifecycle
Fakturia
Contracts carry multiple articles, minimum terms, notice periods and free-choice intervals billed in advance or arrears, upgrades and downgrades are prorated to the day, trials convert automatically, and usage-based billing with multi-currency support sits in the Flex features; the whitelabel self-service portal even ships the section 312k BGB cancellation button German consumer law demands. We found no public information on seat, tiered or volume price books, metering through the API, quotes converting into subscriptions, or versioned subscription history, which keeps it short of the top of the scale.
Frisbii (formerly billwerk+)
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.
Invoices & e-invoicing compliance
Fakturia
Invoices are issued automatically as XRechnung and ZUGFeRD, as hybrid human-readable PDFs with the XML embedded — the formats the German B2B e-invoicing duty from 2025 calls for — cancellations and corrections are transferred as counter-bookings rather than edits, and archiving is stated GoBD-conform and revision-safe, with exact service periods per line and multi-language, multi-currency output. We found no public information on sequential numbering, Peppol transmission, or a Verfahrensdokumentation, so I stop short of the audit-proof grade.
Frisbii (formerly billwerk+)
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.
Cross-border VAT & tax handling
Fakturia
The upper Flex tier adds a VAT ID check, and the export produces Zusammenfassende Meldung and MOSS/OSS reporting data for EU digital services — genuinely useful for the filings. We found no public information on automatic VAT rates per customer country and product type, VIES validation by name, stored evidence of customer location, or any non-EU sales tax handling, so this stays at mid scale.
Frisbii (formerly billwerk+)
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.
Payment collection, dunning & portability
Fakturia
Collection runs across named providers — SEPA, Stripe, Adyen, Unzer, PayPal — or self-collection through the seller's own banking software, with return debits processed automatically through the finAPI account match, and dunning is multi-step and automatic with unlimited escalation levels, individual texts per level and the original invoice attached. We found no public information on SEPA mandate management, smart retries, card updaters, suspension rules, a collection-agency handover, or moving subscriptions and stored payment details to another provider.
Frisbii (formerly billwerk+)
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.
Revenue reporting & accounting handoff
Fakturia
Finance gets a DATEV-certified direct connection on Buchungsdatenservice 2.0 live since 2024, invoice PDFs transmitted with the bookings, postings to individual debtor accounts or a central receivables account, and automatic passive revenue accrual released time-apportioned — the deferred-revenue work I otherwise see done by hand at year end — plus Lexware CSV, a documented REST API with OpenAPI and webhooks, and a JSON data export. We found no public information on MRR, churn or cohort metrics, recognition to IFRS 15 or ASC 606, or data-warehouse sync.
Frisbii (formerly billwerk+)
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.
European sovereignty
Fakturia
The chain is German and stated as such: Luminea IT Services GmbH of Sauerlach (HRB 233747, Amtsgericht München), privately held without foreign investors, hosting in a TÜV-certified Nuremberg data centre with the statement that no data is passed to third countries, a data processing agreement required by the terms, and return and deletion after termination documented. The website itself names US providers in its own chain — HubSpot for chat and marketing, Wordfence for security — and we found no public information on ISO 27001 or SOC 2 certifications or a formal subprocessor list for the product.
Frisbii (formerly billwerk+)
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.
Pricing transparency
Fakturia
The Flex series is fully computable: 0 € base fee with 1,9% or 2,4% of monthly net revenue, three users included, each further user 25 € per month, 7,500 API calls included with additional calls at 0,004 € each, prices net plus statutory VAT, optional premium onboarding at 1,200 EUR one-time, and monthly cancellation on four weeks' notice. The Business and Enterprise tariffs are priced per order sheet rather than publicly, and a move from Flex to Business is possible only after 36 months, so the real annual cost is derivable for the Flex series alone.
Frisbii (formerly billwerk+)
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.
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.