About
Signal is a free messaging app built around end-to-end encryption, keeping all communication private by design. Send texts, voice messages, photos, videos, GIFs, and files over your data connection without SMS or MMS fees. Make encrypted voice and video calls with up to 50 people in a group call, or chat in groups up to 1,000 members with admin controls. Share Stories that disappear after 24 hours with granular privacy settings. Signal's open source Signal Protocol ensures the company cannot read your messages or listen to your calls—no backdoors, no data collection. As a nonprofit organization supported by donations rather than advertisers or investors, Signal operates independently from commercial pressures.
Highlights
- End-to-end encryption on all messages, calls, and files using open source Signal Protocol
- Group calls with up to 50 participants and group chats with up to 1,000 members
- Stories that disappear after 24 hours with customizable privacy settings
- Free calls and messaging over data connection, no SMS or MMS fees
- Nonprofit organization supported by donations, not advertisers or investors
Best for
People prioritizing communication privacy, activists and journalists in restrictive environments, and anyone seeking an alternative to mainstream messaging apps that don't collect user data or sell advertising.
At a glance
Signal - Private Messenger is rated 4.8 out of 5 from 519,951 ratings and is available on iOS and Android — all free to download.
It is developed by Signal Messenger, LLC.
Screenshots
Frequently Asked Questions
- Is Signal - Private Messenger free?
- Yes — Signal - Private Messenger is free to download on iOS and Android.
- What platforms is Signal - Private Messenger available on?
- Signal - Private Messenger is available on iOS and Android.
- What are the alternatives to Signal - Private Messenger?
- Signal - Private Messenger is similar to Proton Authenticator, Stratum - Authenticator App, Bruno, and Mullvad VPN. Browse related apps by tag: open source.
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