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Iris vs Damus: catalog facts
Iris	Damus
Free The research shows no pricing for using the web client.	Freemium Free to use; the optional Purple membership is paid.
Web	macOS, Android, iOS
Runs in the browser with nothing to install Relay list you can edit, with discovered relays	No phone number or email needed to sign up Built on the open Nostr protocol
Content and reach depend on the relays you connect to Nostr has a smaller audience than mainstream networks	You must keep your private key safe yourself Some extras require the paid Purple membership
Web application	Downloadable app
Closed source	Closed source
License not stated	License not stated
Not stated if an account is needed	No account needed
Not stated if it works offline	Not stated if it works offline
Official website Full listing and sources Checked September 23, 2026	Official website Full listing and sources Checked September 23, 2026

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