Bicycle Radar

Your phone becomes a rear-view radar. On-device AI watches behind you and warns you with sound and vibration when a vehicle approaches. Private by design.

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.