Your messages. Your Bitcoin. Together, at last.
Radar is the first app to bring private messaging and self-custodial Bitcoin into one seamless experience. The two most personal things you do every day — who you talk to and what you do with your money — finally live in one place.
For too long it's taken two apps. One to send a private message. Another to send Bitcoin. Copy, paste, switch, repeat. Radar ends the shuffle.
No switching apps. No copy-paste. Just open a chat and send — settled instantly over Bitcoin Lightning. Split dinner, cover a friend, send rent, or surprise someone you love, right inside the conversation.
Radar is built on Signal's trusted messaging network, so the people you already talk to come with you. No rebuilding your network. No new account necessary.
• End-to-end encrypted — built on Signal's battle-tested protocol for encryption you can actually trust.
• Self-custodial — your keys, your coins. Radar never holds your money; no one can freeze, seize, or lose it but you.
• Instant Bitcoin payments over the Lightning Network, settled in seconds.
• No ads or trackers. We don't sell ads and we don't track you. Your chats and payments are nobody's business but yours.
• Open source. Every line is open to inspect, audit, and build on — no black boxes.
• Always free. No subscriptions, no paid tiers, no hidden fees, for everyone, everywhere.
We even give back to the protocol we rely on — Signal's mission to keep private messaging alive is ours too.
The people you connect with. The money you trust. Together, at last.
Note: Radar is an independent project and is not affiliated with or endorsed by Signal Messenger, LLC.
For troubleshooting and questions, please send us an email at support@radar.chat.
The best way to submit a bug report or support request is via issues in this repo or via email. Radar iOS doesn't collect any analytics or telemetry, and we rely on your feedback to help us troubleshoot and fix problems when something isn't working correctly.
Instructions for how to configure your development environment and build Radar iOS can be found in BUILDING.md. We also recommend reading the contribution guidelines.
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
Apple and the Apple logo are trademarks of Apple Inc., registered in the U.S. and other countries. App Store is a service mark of Apple Inc., registered in the U.S. and other countries.