Bicycle Radar
Rear view AI vehicle alerts
Free · Designed for iPad. Not verified for macOS.
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.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
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
The developer, craig merry, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- craig merry
- Size
- 80.1 MB
- Category
- Sports
- Compatibility
Requires iOS 13.0 or later.
- iPhone
Requires iOS 13.0 or later. - iPad
Requires iPadOS 13.0 or later. - iPod touch
Requires iOS 13.0 or later. - Mac
Requires macOS 11.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- Copyright
- © Craig Merry