Frisbii (formerly billwerk+) vs Stripe Billing

Frisbii (formerly billwerk+)

The subscription lifecycle is documented in real depth — pending, trial, active, on-hold, cancelled, non-renewing and expired states, scheduled actions, and renewal and change events exposed through the API documentation. Plans carry add-ons, one-off charges and credits, usage-based and hybrid pricing on the Growth and Scale plans, contract management, and a self-service customer portal with upgrades and downgrades. I found no public information on quotes converting into subscriptions, metering through an API, or price changes rolled out with grandfathering, which keeps it below the top band.

Stripe Billing

Per-seat, tiered, volume and graduated pricing are documented for both Dashboard and API, with free and paid trials, proration, installments and credits, a hosted customer portal, quotes, multi-phase subscriptions and 135+ currencies on top; usage-based billing runs on the Meters API with up to 100 million events per month included. The vendor's own pages state that Metronome, its fuller usage-based product, is not included in Stripe Billing, and I found no public information on rolling price changes out to existing customers with grandfathering or on versioned subscription changes.

Frisbii (formerly billwerk+)

Invoices are generated and archived as PDFs with automatic numbering, configurable prefixes and reset rules, and every correction runs through a credit note that leaves the original invoice untouched — the discipline a tax auditor expects. Structured e-invoicing to the EN16931 profile is implemented as Factur-X 1.0.07 / ZUGFeRD 2.3, and it extends to credit notes as PDF+XML. I found no public information on XRechnung or Peppol sending, GoBD-compliant unalterable archiving, or the e-invoicing mandates in named countries.

Stripe Billing

Credit notes are properly modelled — creatable only from an invoice or its refund, not modifiable once issued, multiple per invoice — and invoices go out in over 135 currencies and 35 languages. The e-invoicing documentation states that Stripe Invoicing itself generates no legally compliant e-invoice files and transmits none; compliant files come through marketplace partners such as Billit or a custom webhook integration, and I found no public information on sequential numbering, mandatory invoice content, GoBD-compliant archiving or a Verfahrensdokumentation.

Frisbii (formerly billwerk+)

VAT is determined automatically by customer country — a standard setting covering the top twenty European markets — with reverse charge for EU business customers whose VAT number is configured, and exemption texts printed on the invoice in the customer's language. The German rate cuts are handled from a key date with automatic splitting of continuous services, and the end-of-performance-period rule is exactly how subscriptions should be taxed. I found no public information on VIES validation of VAT IDs, OSS reporting data, or US sales tax.

Stripe Billing

Stripe Tax covers sales tax, VAT and GST in over 90 countries with product tax codes, can be switched on per subscription, monitors registration thresholds, analyses historical liability, and can perform registrations and filings directly or through integrated partners — as a separately priced module. I found no public information on VIES validation of VAT IDs, OSS reporting data, or the vendor's stated process for maintaining rate changes.

Frisbii (formerly billwerk+)

Payment failures are classified — temporary errors such as an exceeded limit are retried automatically, permanent ones like an expired card trigger dunning immediately — and the dunning plan's intervals and actions are configurable, with automatic cancellation as an end state and SEPA direct-debit returns handled separately. Fifty-plus European payment methods run through one gateway, and a beta AI collections agent contacts customers and records promises to pay under user oversight. I found no public information on card updaters, a handover to a collection agency, or a documented migration path for subscriptions and stored payment data.

Stripe Billing

Smart Retries with AI-chosen timing (recommended default of 8 attempts within 2 weeks), custom retry schedules of up to 3 retries, per-segment retry policies, automatic payment reminders, and subscription outcomes of cancel, mark unpaid, pause or remain past-due give me the control I need before dunning ever touches a key account. Card updaters, expired-card updates, bank-transfer invoice reconciliation, 100+ payment methods, a third-party/multiprocessor option and reported recovery (8,2 Mrd. $ of failed payments recovered in 2025) are documented; I found no public information on a handover to a collection agency or on exporting subscriptions and payment tokens outward.

Frisbii (formerly billwerk+)

The DATEV export is what I would close the month with: SKR03 or SKR04 chart of accounts, EXTF format, per-transaction posting keys, automatic debtor IDs, and a separate revenue account per tax country, tax rate and currency, delivered monthly, weekly or daily and shippable to SFTP. MRR, ARR, churn and receivables sit on dashboards, subscription events are documented in the API, and the end of an invoice item's performance period can be exported per line. I found no public information on deferred revenue schedules, IFRS 15 recognition, or a complete export of customer and subscription data, so billing is not yet provably the system of record.

Stripe Billing

Revenue Recognition to ASC 606 and IFRS 15 is offered at an upcharge, with six debit/credit report types down to invoice line item, general-ledger debit and credit codes in the report columns, and an API whose stated purpose is automating the period close — plus named accounting integrations (QuickBooks Desktop IIF, a NetSuite connector) and data-warehouse sync. Two reservations from a close-the-month standpoint: the recognition API is in public preview with fields that may change, and I found no public information on a DATEV export or on a documented complete export of customers and subscriptions.

Frisbii (formerly billwerk+)

The contracting entities are German — Frisbii Germany GmbH registered in Frankfurt with a German VAT ID, and a data protection officer in Bad Vilbel — and a data processing agreement is published in four languages with GDPR commitments in the terms. Website subprocessors are listed with their locations and safeguards, but I found no public information on where the billing platform itself is hosted; the terms name Salesforce as subcontractor only for the Salesforce-deployed product, and no security certifications are stated.

Stripe Billing

An Irish contracting entity is published with its Companies Registration Office number and VAT ID, Stripe Technology Europe is authorised by the Central Bank of Ireland as an electronic money institution, a data processing agreement and a subprocessor list are published, and ISO 27001, SOC 2 and PCI DSS are stated. That said, I found no public information on where customer, invoice and payment data are hosted, and no locations for the subprocessors, so I cannot see where my billing data sits.

Frisbii (formerly billwerk+)

Starter at €49/mo and Growth at €299/mo are public with the scaling rule — a 0.95% charge on processed billing, with billing free for the first three months on Starter — plus VAT treatment and cancellation terms. Standalone payments are €0.08 per transaction plus payment-method fees that are not itemised in what I read, and both Scale tiers are tailored pricing on a sales call, with merchant bank processing and card import fees mentioned but unquantified. I can budget the lower tiers precisely but not compute a full annual cost at the top end.

Stripe Billing

The billing fee is public with its scaling rule — 0,7 % des Billing-Volumens, 0,67 % for volume above 80.000 € monthly, a 500 € 1-year contract billed monthly with 11 % saving, and card rates such as 1,5 % + 0,25 € für Standardkarten aus Europa. But revenue recognition, tax registration and filing, receivables aging, data-warehouse sync and the multiprocessor option are all marked only as available against an upcharge, and I found no public information on how VAT applies to the fees.