Radar Relay

Radar Relay for iOS

Radar alerts.
Right in
your ears.

Radar Relay turns your compatible detector’s alerts into voice announcements through your Bluetooth headset or car stereo.

See how it works Check your detector

For iPhone · iOS 17 or later
App Store approval pending.

A motorcyclist receiving a spoken Ka band alert through a Bluetooth helmet headset
Keep your eyes on the road. Hear the alert.

A simple connection

The alert takes
a better route.

Your detector does the detecting. Radar Relay handles the audio, through the gear you already use.

  1. Your detector

    A compatible Uniden sends its radar and laser alerts over Bluetooth.

  2. Your iPhone

    Radar Relay turns the alert into your chosen voice announcement or tone.

  3. Your audio

    Hear it in your helmet, Bluetooth headphones, or Bluetooth or CarPlay stereo.

Two wheels. Four wheels.

Same road.
Your kind of audio.

On the motorcycle

In your helmet.
Over the wind.

Route spoken alerts to your Cardo, Sena, or another Bluetooth headset paired with your iPhone. Hear the band, direction, and signal strength without looking down.

In the car

A quiet detector.
A clear announcement.

Keep your detector’s speaker silent and hear voice alerts through your Bluetooth or CarPlay car stereo. Radar Relay uses your iPhone’s active audio output.

If your detector reports signals as muted, enable “Alert for detector-muted signals” in Radar Relay.

Set it up. Head out.

Make every alert
sound like yours.

Pick a voice, a tone, or both. Decide which signals deserve your attention.

Radar Relay Ride screen showing a connected detector and a front Ka band signal

The signal, at a glance.

See live bands, direction, frequency, and signal strength when your detector provides them.

Radar Relay Settings screen with voice and tone options, a test alert, and repeat controls

Your voice. Your rules.

Customize spoken phrases, voice, rate, pitch, volume, minimum strength, and repeat behavior.

Radar Relay Alerts screen showing recent detector alerts

Catch up after the ride.

Check recent alerts in the app. Background listening and automatic reconnection keep it useful with your phone locked.

Leave Radar Relay running in the background. Force-quitting the app stops background listening.

Detector compatibility

Made for
Uniden.

Ask about your setup
  • R4
  • R4W
  • R8
  • R8WHardware tested
  • R9
  • R9W

Tested with the R8W. Compatibility with the R4, R4W, R8, R9, and R9W is expected but has not yet been individually verified.

These models appear on Uniden’s R/TACH compatibility list. Radar Relay uses the same detector data service; that list is not a guarantee of Radar Relay compatibility.

Radar Relay is an independent app, not affiliated with or endorsed by Uniden, Cardo, or Sena. Compatibility can change with detector firmware.

Your ride stays yours.

No accounts. No ads. No analytics.
Detector data and settings stay on your iPhone.

Read the privacy policy