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SimpleX Chat vs Molly: catalog facts
SimpleX Chat	Molly
Free Free and open source under the AGPL 3.0. The company is funded by investment and…	Free Free and open source; donations via Open Collective
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	Encrypts the local app database with a user passphrase Supports UnifiedPush notifications without Google services
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	Android only Registration uses a phone number able to receive SMS or calls, or linking as a Signal linked device
Downloadable app	Downloadable app
Open source	Open source
License: AGPL-3.0	License: AGPL-3.0-only
No account needed	Account needed
Works offline	Needs internet
Official website Full listing and sources Checked September 21, 2026	Official website Full listing and sources Checked September 20, 2026

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