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SimpleX Chat vs Night Drop: catalog facts
SimpleX Chat	Night Drop
Free Free and open source under the AGPL 3.0. The company is funded by investment and…	Free Free and open source under the AGPL-3.0 licence.
Windows, macOS, Linux, Android, iOS, Command line	Android
No user identifier of any kind, so conversations cannot be correlated by account Double ratchet encryption with an additional layer for the relay servers	No phone number, email or account; identity is a local keypair End-to-end encrypted messages sent peer to peer over Tor
Connecting means exchanging a link or QR code in person or elsewhere No contact list means a lost device is a lost set of conversations unless backed up	One-to-one chats only, no groups New project with a small user base
Downloadable app	Downloadable app
Open source	Open source
License: AGPL-3.0	License: AGPL-3.0-or-later
No account needed	No account needed
Works offline	Not stated if it works offline
Official website Full listing and sources Checked September 21, 2026	Official website Full listing and sources Checked October 2, 2026

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