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Invoice Ninja vs Invoice: catalog facts
Invoice Ninja	Invoice
Freemium Free plan available, with paid plans that carry a 30-day money-back guarantee.	Free Free and open source under the MIT license.
Linux, Web	Command line
Supports many payment gateways for one-click client payments Recurring invoices and auto-billing	Generates PDF invoices from terminal commands Supports reusable environment or JSON and YAML configuration
Hosted service requires an account Some features are reserved for paid plans	Uses a command-line workflow
Downloadable app, Hosted service	Downloadable app
Open source	Open source
License: AAL	License: MIT
Account needed	Not stated if an account is 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 8, 2026

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