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Billance vs Invoice Ninja: catalog facts
Billance	Invoice Ninja
Freemium Free to start; details of paid plans are not given in the research.	Freemium Free plan available, with paid plans that carry a 30-day money-back guarantee.
Linux	Linux, Web
Creates XRechnung and ZUGFeRD to EN 16931 Converts existing PDF invoices into e-invoices	Supports many payment gateways for one-click client payments Recurring invoices and auto-billing
Interface and website are in German Proprietary software	Hosted service requires an account Some features are reserved for paid plans
Downloadable app	Downloadable app, Hosted service
Closed source	Open source
License: Proprietary	License: AAL
Not stated if an account is needed	Account needed
Not stated if it works offline	Not stated if it works offline
Official website Full listing and sources Checked October 1, 2026	Official website Full listing and sources Checked October 1, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.