Signal Messenger — The gold standard in private, open-source end-to-end encrypted messaging
Signal ensures private communication with state-of-the-art end-to-end encryption, disappearing messages, and zero ad tracking.
About Signal Messenger
Signal is an open-source, non-profit privacy communications platform recommended by top security researchers worldwide. Powered by the open Signal Protocol, Signal cannot read your messages, listen to your calls, or sell metadata to advertisers.
Key features
- Signal Protocol End-to-End Encryption — Industry-standard cryptographic protocol that protects every text and call.
- Disappearing Messages — Automatically erase conversation history after a customized time interval.
- Zero Trackers & Non-Profit Mission — Funded entirely by grants and user donations with no corporate ads.
Pricing
Pricing model: Free.
- 100% Free Forever — $0 — Zero fees, Zero ads, Encrypted voice & video calls, Desktop app sync
Pros
- The absolute gold standard in digital communication privacy and encryption
- Non-profit foundation structure guarantees data is never sold to advertisers
- Clean open-source codebases audited by independent cryptographers
Cons
- Requires phone number registration for contact discovery
- Fewer recreational stickers and mini-app games than Telegram
Platforms
iOS, Android, Mac, Windows, Linux
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