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YAFFA vs Firefly III: catalog facts
YAFFA	Firefly III
Free Free and open source under the MIT licence.	Free Free and open source under the AGPL 3.0. You provide the hosting.
Web, Self-hosted	Windows, macOS, Linux, Web, Self-hosted
No bank connection needed, data stays on your server Multi-currency accounts with daily rate updates	Budgets, categories, tags, bills and recurring transactions in one place Rules that categorise transactions as they arrive
Requires running a PHP and Laravel server AI document processing needs your own paid API key	A PHP application with a database that you have to run and update Bank imports need a separate companion tool
Self-hosted	Self-hosted
Open source	Open source
License: MIT	License: AGPL-3.0
Not stated if an account is needed	No account needed
Not stated if it works offline	Works offline
Official website Full listing and sources Checked October 2, 2026	Official website Full listing and sources Checked September 21, 2026

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