Frisbii (formerly billwerk+) vs Stripe Billing

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.

Stripe Billing

The commercial model is well documented: metered usage through the Meters API with up to 100 million events per month included, tiered, volume and per-seat pricing with worked examples, free and paid trials, quotes before the subscription, a Stripe-hosted customer portal, and multi-phase plans that schedule upgrades in advance. For my contract business, we found no public information on minimum contract terms, notice periods or how price increases are rolled out to existing customers with grandfathering.

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.

Stripe Billing

Credit notes are handled properly — they cannot be modified once issued, several are allowed per invoice, and they work for paid and unpaid invoices — and invoices go out in more than 135 currencies and 35 languages. For structured e-invoices the documentation points to partners on the Stripe App Marketplace (Billit named as preferred e-invoicing partner) delivering UBL, CII and Peppol BIS Billing 3.0, while stating that Stripe itself does not generate or transmit legally compliant e-invoice files. We found no public information on sequential numbering, mandatory invoice content, GoBD-compliant archiving or the XRechnung format my public-sector customers demand.

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.

Stripe Billing

Stripe Tax automates VAT, sales tax and GST across more than 90 countries, uses product tax codes for correct treatment by product type, can be switched on when creating a subscription, monitors local registration triggers, and offers registrations and filings directly or through integrated partners at extra cost. We found no public information on VIES validation of customer VAT IDs, reverse charge handling for business customers or OSS reporting data, which I would need for cross-border EU retainers.

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.

Stripe Billing

Smart Retries with AI-chosen timing (recommended default of 8 attempts within 2 weeks), custom retry schedules of up to three attempts, separate retry policies per customer segment, automatic payment-reminder emails, pause or cancellation of subscriptions after failed renewals, expired-card updates, and automatic reconciliation of recurring invoices paid by bank transfer are all documented. Over 100 payment methods including direct debit are supported, connection to any payment provider is offered as an add-on, and the documentation includes a page on migrating SEPA direct debit mandates from another payment provider. We found no public information on handover to a collection agency.

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.

Stripe Billing

Revenue recognition to ASC 606 and IFRS 15 is stated as a paid add-on, with six report types including per-customer, per-invoice and per-line-item debit and credit reports that carry general ledger codes, exportable as CSV or through a reporting API, plus accounting handoffs to QuickBooks Desktop via IIF export and a NetSuite connector, with custom reporting and data-warehouse sync listed as add-ons. For a German office this is the gap: we found no public information on a DATEV export for the tax adviser.

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.

Stripe Billing

The legal notice names a Dublin-registered company (Companies Registration Office number 564555, VAT ID IE3396855EH), EEA payment services run through an electronic money institution authorised by the Central Bank of Ireland, and a data processing agreement plus a published subprocessor list exist, with ISO 27001, SOC 2 and PCI DSS stated. But we found no public information on where customer, invoice and payment data are hosted, so I cannot confirm from the captured pages that my customers' data stays in Europe.

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.

Stripe Billing

The pricing page publishes the scaling rule — 0,7 % des Billing-Volumens on pay-as-you-go, 0,67 % for additional billing volume above a monthly 80.000 €, card rates of 1,5 % + 0,25 € for standard European cards and 2,5 % + 0,25 € for UK cards, and a 1-year contract at 500 € monthly with 11 % saving — plus up to 100 million metering events per month included. However, revenue recognition, tax registration and filing, metering, data-warehouse sync and third-party payments are marked only as available at extra cost, so the real annual cost for my module set is not computable from the public pages.