Bicycle Radar

About this app

Bicycle Radar turns your iPhone into a rear-view safety radar for your bike. Mount your phone facing backward, start a ride, and on-device AI watches the road behind you. When a car or truck approaches, you get a clear audio alert and vibration, so you can keep your eyes ahead. WHY CYCLISTS USE IT - Real-time vehicle detection with your phone's camera, no extra hardware to buy - Audio and vibration alerts tuned for approaching vehicles, so you never need to look at the screen while riding - Distance and speed estimates for detected vehicles - Ride recording: save videos of your rides, with detection overlays, to your photo library - Ride stats: speed and location tracked on your device during rides TRY IT BEFORE YOU RIDE The built-in demo plays a real traffic clip through the live detector, so you can see exactly how detection and alerts work before mounting your phone. PRIVATE BY DESIGN Everything runs on your device. No account, no sign-in, no analytics, no ads. Camera frames are analyzed in real time and never uploaded. Your location is used only to measure your speed during rides and never leaves your phone. Your ride videos belong to you. IN FOUR LANGUAGES English, Spanish, French, and Latvian. A NOTE ON SAFETY Bicycle Radar is an assistive tool. It does not replace mirrors, lights, a helmet, or your own attention to the road. Always ride according to local traffic laws.

This is a big update focused on detection quality and reliability. - Fixed vehicle detection on iOS: detection now starts reliably and runs at full speed - Upgraded the detection model for cleaner, more accurate vehicle recognition - New: Demo mode. Play a bundled traffic clip through the live detector to see how alerts work before you ride - New: Full Latvian localization, and all four languages (English, Spanish, French, Latvian) now have complete translations - Clearer privacy policy: everything runs on your device, and the policy now says exactly that - Many fixes: language selector stability, video player error handling, layout fixes on small screens

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1. First observed Aug 12, 2026 · 2:51 AM Free