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Iris vs Notedeck: catalog facts
Iris	Notedeck
Free The research shows no pricing for using the web client.	Free Free to download from its public GitHub repository.
Web	Windows, macOS, Linux, Android
Runs in the browser with nothing to install Relay list you can edit, with discovered relays	Multi-column layout for several feeds at once Native app written in Rust
Content and reach depend on the relays you connect to Nostr has a smaller audience than mainstream networks	Only for the Nostr network Smaller user base than Damus on iOS
Web application	Downloadable app
Closed source	Closed source
License not stated	License not stated
Not stated if an account is needed	Not stated if an account is needed
Not stated if it works offline	Needs internet
Official website Full listing and sources Checked September 23, 2026	Official website Full listing and sources Checked October 2, 2026

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