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KrISS feed vs Tiny Tiny RSS: catalog facts
KrISS feed	Tiny Tiny RSS
Free Free to use, released into the public domain under CC0.	Free Free and open source under the GPL. Hosting is separate.
Self-hosted	Web, Self-hosted
Installs as a single PHP file No database required	Filtering and scoring rules that few other readers match API support means third-party mobile clients work against your own server
Basic interface compared with larger feed readers No formal releases, only the repository	Official distribution is Docker-first and upstream is famously blunt about support Requires PHP and PostgreSQL or MySQL
Self-hosted	Self-hosted, Web application
Closed source	Open source
License: CC0-1.0	License: GPL-3.0
Not stated if an account is 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 2, 2026	Official website Full listing and sources Checked September 22, 2026

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