Compare software

Molly vs Session: catalog facts
Molly	Session
Free Free and open source; donations via Open Collective	Free Free and open source under the GPL 3.0, run by the Session Technology Foundation.
Android	Windows, macOS, Linux, Android, iOS
Encrypts the local app database with a user passphrase Supports UnifiedPush notifications without Google services	No phone number or email needed; the account is a random ID Onion routing hides your address from recipients and from the network
Android only Registration uses a phone number able to receive SMS or calls, or linking as a Signal linked device	Losing your recovery phrase means losing the account with no reset Delivery can be slower than a centralised messenger
Downloadable app	Downloadable app
Open source	Open source
License: AGPL-3.0-only	License: GPL-3.0
Account needed	No account needed
Needs internet	Works offline
Official website Full listing and sources Checked September 20, 2026	Official website Full listing and sources Checked September 21, 2026

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