An open-source messaging app emphasizing privacy with encrypted communication. Share texts, calls, photos, and videos without ads or trackers, available across major platforms. Developed by Signal Technology Foundation and praised globally for security measures.
Cost / License
- Free
- Open Source
Application types
Platforms
- Mac
- Windows
- Linux
- Android
- iPhone
- iPad
- Flathub
- Ubuntu
- Debian
- Snapcraft




Comments about Signal as an Alternative to ICQ

Signal is the most popular Windows, Android, Mac & iPhone alternative to ICQ.
Signal is the most popular Open Source & free alternative to ICQ.
- Signal is Free and Open Source
- Signal is Privacy focused, Security-focused and Lightweight












































Signal is linked to your phone number, unlike ICQ where you obtain an independent number that identifies your account. If I didn't mind sharing personal information like that, I'd just use SMS instead.