I Use This!
Very High Activity
Analyzed 5 days ago. based on code collected 2 months ago.

Project Summary

Free, world-wide, private phone calls for iPhone, Android and Desktop. Private messaging coming soon!

Like privacy? Secure your calls for free with Signal. It's that simple.

Signal provides end-to-end encryption for your calls, securing your conversations so that nobody can listen in.
- Signal uses your normal phone number to make and receive calls, so you don't need yet another identifier.
- Signal calls are encrypted end-to-end, but function just like you're used to.
- Free and Open Source, enabling anyone to verify its security by auditing the code.
- Uses wifi or data, not your plan's voice minutes.


call encrypted ios message secure sms textmessage voip whispersystems

GNU General Public License v3.0 only

These details are provided for information only. No information here is legal advice and should not be used as such.

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Project Security

Vulnerabilities per Version ( last 10 releases )

Project Vulnerability Report

Security Confidence Index

Poor security track-record
Favorable security track-record

Vulnerability Exposure Index

Many reported vulnerabilities
Few reported vulnerabilities

Did You Know...

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About Project Security


21 Other

30 Day Summary

Apr 15 2018 — May 15 2018

12 Month Summary

May 15 2017 — May 15 2018
  • 8472 Commits
    Up + 4420 (109%) from previous 12 months
  • 104 Contributors
    Down -25 (19%) from previous 12 months