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Directory/Sports & Health/Bike RadarSOURCE-BACKED RECORD
Bike Radar app icon
maintained

Bike Radar

es.jjrh.bikeradar

Overlay and audio alerts for BLE bike radars. Offline, no account, no cloud.

Latest documented release1.9.012 Oct 2026 · 8.0 MB→

01 / Overview

Is Bike Radar safe?

Bike Radar shows and sounds what your rear bike radar sees, on top of whatever app you are already running. A thin strip down the edge of the screen shows each approaching vehicle's distance, closing speed and lateral position. Tiered beeps rise as the closest vehicle gets nearer, and a distinct urgent tone fires when an impact looks imminent - including while you are rolling slowly toward a junc…

Developer
JJ del Rio
Earliest archived version
09 Sept 2026
License
GPL-3.0-or-later (per F-Droid metadata)

02 / Release notes

Release notes from F-Droid

1.9.0

A radar that connects but never sends data now counts as off, so the drop alert and the warning for riding without it can sound. Close passes are measured where the vehicle draws level, and readings closing faster than 126 km/h are left out of close passes and peak closing speed. Switching eBike…

Full notes →
1.8.1

"Warn up to" now starts at No limit, so the fastest approaches get beeps and urgent warnings again. In 1.8.0 it started at 126 km/h, which could silence a real vehicle. A speed you chose yourself is kept. To quiet fast phantom readings again, set a speed in Settings → Alerts; 126 km/h was the 1.8.0…

Full notes →
1.7.1

The Privacy screen now lists what the ride summary sends to Home Assistant, and says it updates during the ride. The example ride, the volume step and Alert sounds explain why the volume buttons can change your wake-up alarm. English and Spanish now use one name each for the all-clear.

Full notes →

03 / Package identity

Technical fingerprint

Application IDes.jjrh.bikeradar
Latest APK SHA-25616d7b6c97a8037a93b678b039f3f41f6274fee487c4fc98bc317568ed7ba2496
Signing certificate6F:18:04:BF:06:E5:E3:87:A8:FF:9E:E8:8B:8D:42:FC:16:8E:47:99:13:16:0A:21:0A:65:AF:00:FD:F9:9A:89
MIN ANDROID31TARGET36ARCHITECTUREarm64-v8a · armeabi-v7a · x86 · x86_64

04 / History

Archive history

12 versions in WIKI archive: earliest 1.5.0 (09 Sept 2026), latest 1.9.0 (12 Oct 2026).

No change in android.permission.* between 1.8.1 and 1.9.0.

05 / Version archive

Documented releases

12 TOTAL

06 / Safety & access

Safety verdict

Authentic — file hash matches the source indexNo ads or tracking flagged by the source
IntegritySHA-256 verified vs source
SourceOpen-source · fdroid
Permissions14 declared · 2 sensitive
Signaturepresent
Anti-featuresNo known anti-features
Sensitive accessACCESS_COARSE_LOCATIONSYSTEM_ALERT_WINDOW

Declared permissions

Tracker status: Not assessed by WIKI for Android.

07 / Sources

Evidence ledger

Each entry is a captured public reference backing this record.