Radar is a private messenger with built-in Bitcoin payments over the Lightning Network. It is a fork of Signal-Android and keeps Signal's end-to-end encryption. Radar is an independent project and is not affiliated with or endorsed by Signal Messenger, LLC.
- Obtainium (recommended — automatic update notifications): tap the badge above, or add
https://github.com/radar-labs/radar-androidas an app in Obtainium. - Direct APK: download from GitHub Releases —
arm64-v8afor most phones,armeabi-v7afor older 32-bit devices.
We use GitHub for bug tracking. Please search the existing issues for your bug and create a new one if the issue is not yet tracked!
https://github.com/radar-labs/radar-android/issues
If you're new to the codebase, we recommend going through the issues and picking out a simple bug to fix in order to get yourself familiar. Also please have a look at CONTRIBUTING.md, which might answer some of your questions.
This distribution includes cryptographic software. The country in which you currently reside may have restrictions on the import, possession, use, and/or re-export to another country, of encryption software. BEFORE using any encryption software, please check your country's laws, regulations and policies concerning the import, possession, or use, and re-export of encryption software, to see if this is permitted. See http://www.wassenaar.org/ for more information.
The U.S. Government Department of Commerce, Bureau of Industry and Security (BIS), has classified this software as Export Commodity Control Number (ECCN) 5D002.C.1, which includes information security software using or performing cryptographic functions with asymmetric algorithms. The form and manner of this distribution makes it eligible for export under the License Exception ENC Technology Software Unrestricted (TSU) exception (see the BIS Export Administration Regulations, Section 740.13) for both object code and source code.
Copyright 2013-2025 Signal Messenger, LLC Copyright 2026 Radar Chat, Inc.
Licensed under the GNU AGPLv3: https://www.gnu.org/licenses/agpl-3.0.html