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Kryfo vs nospeak: catalog facts
Kryfo	nospeak
Free Free and open source under GPL-3.0; optional anonymous backing supports development.	Free Free and open source.
Android	Android
No phone number or email needed End-to-end encrypted chats and groups	No central server; uses Nostr relays End-to-end encrypted conversations
Pre-alpha and not yet audited Android only	Small project with a small user base Requires contacts who also use Nostr
Downloadable app	Downloadable app
Open source	Open source
License: GPL-3.0	License: GPL-3.0-or-later
No account 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 8, 2026	Official website Full listing and sources Checked October 2, 2026

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