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Nostur vs Damus: catalog facts
Nostur	Damus
Free Available from the App Store or as a direct download, with published source.	Freemium Free to use; the optional Purple membership is paid.
macOS, iOS	macOS, Android, iOS
Multiple accounts and a guest mode Posts stored on device with export	No phone number or email needed to sign up Built on the open Nostr protocol
Apple platforms only Zaps require a Lightning wallet	You must keep your private key safe yourself Some extras require the paid Purple membership
Downloadable app	Downloadable app
Open source	Closed source
License not stated	License not stated
No account needed	No account needed
Not stated if it works offline	Not stated if it works offline
Official website Full listing and sources Checked September 24, 2026	Official website Full listing and sources Checked September 23, 2026

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