Frisbii (formerly billwerk+) vs Stripe Billing

Frisbii (formerly billwerk+)

The lifecycle is real engineering: seven subscription states including trial and on-hold, sub-state flags exposed via API, a named event set covering renewal, cancellation, uncancelled and pricing changes, plus plans with add-ons and credits, usage-based and hybrid pricing, three documented upgrade and downgrade routes, scheduled actions, contract management and a self-service customer portal. We found no public information on proration, metering usage through an API, quotes that convert into subscriptions, or multiple currencies and price books, which is what keeps this below the level of a full commercial-model engine.

Stripe Billing

Tiered, volume, graduated and per-seat pricing are documented end to end, with the tier fields named in the API, free trials, prorated billing, scheduled subscription changes, quotes before the subscription exists and a Stripe-hosted customer portal; usage metering runs through the Meters API with up to 100 million events per month included. Two caveats from the same pages: advanced usage-based billing lives in Metronome, which is stated as not included in Stripe Billing, and a product and price are only editable until a subscription is created. I found no public information on entitlements exposed to the selling application or grandfathered price rollouts to existing customers.

Frisbii (formerly billwerk+)

Invoices are generated and archived automatically with configurable number prefixes and monthly, yearly or no reset, corrections happen as credit notes with their own number sequence while the original invoice stays untouched, and a refund automatically creates a credit note. Enabling e-invoicing produces Factur-X 1.0.07 / ZUGFeRD 2.3 hybrid PDFs on the EN16931 profile for invoices and credit notes alike, with DIN 5008 formatting warnings and per-country exemption texts. We found no public information on XRechnung, delivery through Peppol, GoBD-compliant numbering and unalterable archiving, or the e-invoicing mandates of named EU countries.

Stripe Billing

Invoices go out in 35 languages and 135 currencies, and the correction path is disciplined: credit notes serve as the source of truth, cannot be modified once issued, and multiple are allowed per invoice. The captured pages state plainly that Stripe Invoicing itself does not generate or transmit legally compliant e-invoice files — compliant XML (UBL, CII, Peppol BIS Billing 3.0) is produced by marketplace partners such as Billit, reached via webhook or app. I found no public information on sequential numbering, mandatory invoice content or GoBD-compliant archiving.

Frisbii (formerly billwerk+)

VAT is determined automatically by customer country with a standard setting covering the normal rates of the twenty principal European countries, reverse charge applies to cross-border EU customers that have a VAT number on record, and zero-rate exemption texts exist for reverse charge, non-EU sales and domestic VAT groups, with the German 2020/2021 rate changes preset and automatic splitting of continuous services at rate-change dates. Two things cap it: we found no public information on validation of VAT IDs against VIES, and the captured pages state that EU business-to-consumer invoices simply assume you take part in the One-Stop-Shop procedure rather than describing OSS reporting data; we also found no public information on US sales tax.

Stripe Billing

Stripe Tax automates sales tax, VAT and GST in more than 90 countries with product tax codes, tracks sales against local registration limits, performs registrations on your behalf and manages filings directly or through integrated partners — and it can be switched on per subscription right in the Dashboard, which is exactly how I want it wired. I found no public information on VIES VAT-ID validation, OSS reporting data or kept evidence of customer location on the captured pages.

Frisbii (formerly billwerk+)

Dunning is properly engineered: smart failure classification retries temporary errors such as an exceeded credit limit and starts dunning immediately on permanent ones like an expired card, plans give full control over intervals and actions and can end in subscription cancellation, SEPA direct debit is supported with configurable return handling, and a beta AI collections agent contacts customers, answers replies and records promises to pay while the payments and receivables dashboards track failed transactions and collection performance. Gateway choice is documented only as Frisbii or partner payment gateway options, and we found no public information on card updaters, bank-transfer reconciliation, handover to a collection agency, or a migration path that moves subscriptions and payment tokens to another provider.

Stripe Billing

Smart Retries with AI-chosen timing, automatic updates for expired cards, custom retry schedules and per-segment retry policies, configurable cancel/unpaid/pause outcomes on final failure, reminder emails, and automatic reconciliation of ACH and bank-transfer payments are all documented, plus webhook events like invoice.payment_failed to build on; the pages state 8,2 Mrd. $ in failed payments recovered in 2025 and 14 $ recovered per invested 1 $. I found no public information on a collection-agency handover or on a documented path to export subscriptions and stored payment tokens to another provider.

Frisbii (formerly billwerk+)

Finance gets MRR, ARR and churn dashboards with retention KPIs and an AI forecasting add-on, plus a genuinely deep DATEV handoff: SKR03 or SKR04 chart selection, posting-key overrides, revenue accounts configurable per tax country, rate and currency with separate VAT accounts, automatic debtor IDs, EXTF or ASCII formats, and monthly, weekly or daily exports delivered to SFTP, Google Drive or OneDrive, alongside a documented API with subscription events and a Salesforce integration. We found no public information on deferred revenue schedules or recognition stated to IFRS 15 / ASC 606, MRR movements explained per customer, data-warehouse sync, or a complete export of customers, subscriptions and invoices that a successor system could import.

Stripe Billing

Revenue recognition to ASC 606 and IFRS 15 is offered, with six report types — debit/credit breakdowns by invoice, customer, product and line item, carrying debit and credit general-ledger codes — downloadable as CSV or pulled through the Revenue Recognition API in public preview, alongside a NetSuite connector, a QuickBooks export and data-warehouse sync as an upcharge. Webhooks such as invoice.updated are documented for keeping my own systems in step. I found no public information on a DATEV export or on a complete export of customers and subscriptions a successor system could import.

Frisbii (formerly billwerk+)

The contracting entities are German — Frisbii Germany GmbH in Frankfurt, registered in the commercial register, plus Frisbii Media GmbH in Kempten — a data processing agreement is published in English, German, Danish and French with a German data protection officer, and the website's subprocessors are listed with locations and safeguards such as standard contractual clauses and Data Privacy Framework listing. However, the captured pages leave the hosting of the core billing platform and its data residency unconfirmed — only the Salesforce-deployed product is described, hosted by Salesforce as a subcontractor — and we found no public information on security certifications such as ISO 27001 or SOC 2.

Stripe Billing

EEA customers contract with an Irish entity registered at the Irish Companies Registration Office, and the payments entity is authorized by the Central Bank of Ireland as an electronic money institution; a data processing agreement and a subprocessor list are published, and ISO 27001 and SOC 2 are stated. The vendor itself is Stripe, Inc. of South San Francisco. I found no public information on the captured pages confirming where billing and invoice data are hosted or where the listed subprocessors operate.

Frisbii (formerly billwerk+)

Starter at €49/mo and Growth at €299/mo are published with seat counts, a 0.95% charge on processed billing, VAT stated as additional to the advertised plan price, and cancellation terms of three months' notice on Starter. Both Scale tiers are quoted as tailored pricing with a talk-to-sales path, and merchant bank processing fees, per-payment-method fees and customer/card import fees are referenced but not quantified on the captured pricing page, so a real annual cost is not computable for larger volumes.

Stripe Billing

The scaling rule is public: 0,7 % of billing volume pay-as-you-go, 0,67 % for additional billing volume above a monthly 80.000 €, or 500 € monthly on a one-year contract with 11 % savings, and card rates such as 1,5 % + 0,25 € for standard European cards are published. But revenue recognition, tax registration and filing, usage metering at scale, third-party payments and data-warehouse sync are only marked with an asterisk as available at an upcharge, without published prices, and VAT treatment of fees is not stated.