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Signal - Private Messenger

By Open Whisper Systems

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Privacy is possible, Signal makes it easy.
Using Signal, you can communicate instantly while avoiding SMS fees, create groups so that you can chat in real time with all your friends at once, and share media all with complete privacy. The server never has access to any of your communication and never stores any of your data.

• Say Anything - Signal uses an advanced end to end encryption protocol that provides privacy for every message every time.

• Open Source - Signal is Free and Open Source, enabling anyone to verify its security by auditing the code. Signal is the only private messenger that uses open source peer-reviewed cryptographic protocols to keep your messages safe.

• Be Yourself - Signal uses your existing phone number and address book. There are no separate logins, usernames, passwords, or PINs to manage or lose.

• Group Chat - Signal allows you to create encrypted groups so you can have private conversations with all your friends at once. Not only are the messages encrypted, but the Signal server never has access to any group metadata such as the membership list, group title, or group icon.

• Fast - The Signal protocol is designed to operate in the most constrained environment possible. Using Signal, messages are instantly delivered to friends.

• Speak Freely - Make crystal-clear voice and video calls to people who live across town, or across the ocean, with no long-distance charges.

For support, questions, or more information, please visit:

Source code:

Follow us on Twitter (@WhisperSystems) for all of the latest updates and announcements.

What's New in Version 2.15.3

• Fixed intermittent crash while scrolling through messages.
• Fixed source of phantom "New Message" notification.
• Fixed unintentional call hangup when on shoddy networks.
• Updated translations.

Other recent changes:
• Keep group accessible after last message in the group conversation is deleted.
• Fixed a crash on launch on iOS 8.
• Fixed disappearing group conversations.
• Fixed copy/paste of gifs that also contain text/links.
• Added RTL language support. Email to contribute to translations of RTL languages - Arabic, Hebrew, Persian/Farsi, Urdu.
• Modified registration view to indicate the need for a cell phone prefix for Mexican phone numbers (+521).
• Improved UIUX layout glitches for group threads after the first message is sent.
• Improved registration flow to prevent and fix instances of "one way" messaging with a contact.
• Removed empty 1:1 conversation threads from displaying.
• Updated to refresh the inbox view when necessary.
• Fixed separate crashes for some users on iOS10, when deleting a thread, and updates from older versions of Signal.
• Changed to prompt for contacts permission when adding unsaved numbers to existing contacts.

iPhone Screenshots

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Customer Reviews

Signal is great! Snowden-approved!

They also provided the encryption behind Whatsapp.

Signal recently received a subpoena for information on two users. There was no real info available to provide the government due to Signal's encryption and policies. Signal is very private and secure! Even the US Senate has approved its use.

The new features are good too: file transfers, muting conversations, etc.

Everyone, regardless of political affiliation, should have this installed on their phone!

Excellent app

App gets better with each release.

Awesome job on the Bluetooth support, it is as possibly my biggest gripe with Signal.

Favorite Communication App

This is amazing… encrypted, easy to use, self destructing messages, its perfect!

Request: iPad app ;)

Request: Custom ringtones and text tone please!

Signal - Private Messenger
View in iTunes
  • Free
  • Category: Social Networking
  • Updated:
  • Version: 2.15.3
  • Size: 56.6 MB
  • Languages: English, Albanian, Arabic, Azerbaijani, Bosnian, Bulgarian, Catalan, Croatian, Czech, Danish, Dutch, Filipino, Finnish, French, Galician, German, Greek, Hungarian, Indonesian, Italian, Japanese, Korean, Latvian, Macedonian, Norwegian Bokmål, Polish, Portuguese, Romanian, Russian, Shona, Simplified Chinese, Slovenian, Spanish, Swedish, Thai, Turkish
  • Seller:

Compatibility: Requires iOS 8.0 or later. Compatible with iPhone, iPad, and iPod touch.

Customer Ratings

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