Signal - Private Messenger
Signal Messenger, LLC
About
Signal is a free messaging app built around privacy and encryption. It lets you send texts, voice messages, photos, videos, GIFs, and files over your data connection, avoiding SMS and MMS fees. Make encrypted voice and video calls with up to 50 people in a group call, or chat in groups of up to 1,000 members. Stories disappear after 24 hours with granular privacy controls. Signal uses open source encryption that prevents even Signal from reading your messages or listening to your calls—no backdoors, data collection, or compromises. The app is run by a nonprofit organization funded by donations, not advertisers or investors.
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 privacy controls over who can view them
- Free messaging, voice calls, and video calls over data connection with no SMS or MMS fees
- Nonprofit organization funded by donations with no data collection or advertising
Best for
People who prioritize privacy in their communications and want to avoid SMS fees. Teams and friend groups needing secure group messaging and calls. Anyone seeking a messaging app that doesn't collect data or rely on 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 is Signal?
- Signal is a free messaging app with end-to-end encryption that keeps your communications private. It lets you send messages, make voice and video calls, and share files over your data connection. Signal is run by a nonprofit organization and uses open source encryption that prevents even Signal from reading your messages.
- How many people can join a Signal group call?
- Signal supports group calls with up to 50 people. For text-based group chats, you can have up to 1,000 members.
- Can I use Signal without giving up my data?
- Yes. Signal is built so that Signal knows nothing about you or who you're talking to. The open source Signal Protocol means Signal cannot read your messages or listen to your calls, and there are no backdoors or data collection.
- What happens to Signal Stories?
- Stories you share disappear after 24 hours. You control exactly who can see each Story through privacy settings.
- 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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