Signal
Encrypted messaging and calls—free, nonprofit, no ads or subscriber tiers.
Quick facts
- Price model
- Open source
- Starting price
- Free
- Best for
- Private family chats · Encrypted calls · Replacing SMS for close contacts
- Replaces
- WhatsApp anxiety, Paid secure chat apps
- Platforms
- MacWindowsLinuxiOSAndroid
- Last verified
- 2026-06-22
Why it's listed
Gold-standard encryption from a known nonprofit—download only from signal.org.
Signal provides end-to-end encrypted texts, voice, and video from the Signal Foundation. No business model that sells your attention—donations optional. Replaces paid 'secure messaging' apps that still want a monthly seat.
The catch
Everyone you message needs the app; no fun stickers ecosystem like iMessage.
Good fit for
- Parents coordinating sensitive info
- Journalists and activists
Not ideal for
- Large group chats with relatives who refuse new apps
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