R4 Companion

R4 Companion

Uniden R4 Radar Detector

583 ratings
39 reviews
#32 in paid Utilities
🔧 Utilities
✈️ Travel
$9.99
In-App Purchases

Details

  • Released
  • Updated
  • August 30, 2023
  • July 22, 2026
R4 Companion video #1 for iPhone
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About

Enhance your driving experience with intelligent alerts and advanced muting for your radar detector. This app offers location-based false silencing, custom phrases for alerts, and a customizable heads-up display for real-time threat information.

Location-based false silencing (SpotLocks™)
Intelligent alert customization
Customizable heads-up display (HUD)
Advanced muting features
Real-time threat and signal meters
Customizable alert phrases
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What users say

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What's New in R4 Companion

1.23.3

July 22, 2026

Now works with CarPlay! "Feels like a new detector!", -e This is what people are saying after using R4 Companion™ - See what all the fuss is about, try it for yourself! New for version 1.23: • CarPlay support - Fullscreen/Dashboard • CarPlay background alerts • Live Activities for CarPlay, iPhone, Apple Watch. Other recent big updates: • Full navigation functionality. • Alert banner "SignalScope" shows signal strength over time of the current priority alert. • Alert screen (portrait & landscape views). *Option to view classic or new alert screen with a tap of a button. • Alert screen banners showing detailed alert, false assist, POI, MyRadarIQ, over speed warnings and other detailed detector status information. • Navigation map zoom level customization. • Set detector mode from new alert screen. • Alternate Route selection with highway, and toll avoidance. • Navigation screen shows arrival time, distance & trip time remaining. • 'Show traffic' option while navigating. • 'Recent trip' quick selection. • Nearby points of interest selection. • Quick Nav selection from classic alert screen. • Quickly switch back from navigation screen to classic alert details screen. • “Free Drive” (map / no map) alert screen when not in navigation mode. • Free Drive without map display option (battery saver). • Posted speed limit displayed on main alert screen (US, CA, AU, NZ). • Customizable low speed muting based on PSL. • Updated main screen graphics and layout. • Updated MyRadarIQ meter and functionality. • Updated "ghost muted" graphics. • Updated graphics for alerts, silenced alerts, POI. • SpotLock engine version 03012026 - latest historical data. • Advanced false assist engine version 03012026 - latest 5+ years of historical data. If you liked R4 Companion before this release, you are going to LOVE it after! Spread the word, it is only going to get better. If you have an idea / suggestion you would like included in a future update, please visit https://crackedpixel.com/contact-us to let us know. Thanks! • MyRadarIQ™ - Threat assessment intelligent system for the radar companion series of apps. A new meter, visible at the top of the main alert screen, will show a graphical representation of the probability of a police presence (Ka or Laser) in the direction of your travel. Using your personal alert data, whenever a high probability exists for an encounter ahead, you will know about it well in advance of facing the actual threat. The meter will go from yellow (low threat), to orange (medium threat), to red (high threat) and flash on and off and a voice announcement will occur. The meter will also flash red when a Ka or Laser alert is actively being received to help draw attention to the alert. Probabilities are calculated down to the actual day of the week you are traveling, increasing the accuracy on any given day. • Instantly see your changes when modifying detector settings. • Flashes screen when an alert occurs. • Pair it and forget about it! It just works. *New* - Robust Bluetooth connection engine works seamlessly in the background to manage all your R4 devices. • Better support for background connections when switching between different R4 detectors. If you are running multiple R4s across multiple vehicles, this update is for you! • Added the option to have the radar detector's alert tones play through the app. • The app will read your detector's settings for each signal type's alert tone (1-12) and use the associated alert tone within the app for alerts. ***TIP: Setting the main volume for the detector to 0 on the main alert screen and enabling the detector alert tones, will eliminate the brief audio "blips" you would normally hear when a mute command is first sent to the detector. Only potential threats will then trigger audio through your speaker or audio system providing an extremely quiet ride.

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In-App Purchases

$1.99

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Charts

Top Paid

📉 32-2

Utilities

This app dropped -2 positions in Utilities chart.

Last updated on July 31, 2026.

User reviews

Excellent App. Saves me lots of money 😜

Excellent app. I love the configurations to disable the frequency voice announcements that are totally irrelevant unless you’re a power user. I use it on a motorcycle and it works like a charm.

What I would love to see is carplay support.

Response from developer

Thanks @Wtfsjaa! Your wish is our command. CarPlay integration is now available in the latest update. Enjoy!

Use to like it

R4 keeps disconnecting via Bluetooth. 40 mins or 1 min is the connection time. Other apps do not disconnect.
Tried factory reset on radar, iphone, delete app and installing old firmware on r4. Still the same issues, resorting to using other apps until fix. If not well….

June 6: the connection between the phone and the radar was excellent, with the distance between them being less than two feet. However, it appears that wireless car play is interfering with the proper functioning of this app due to the same Bluetooth frequency or within the same parameters. Wired CarPlay is the only method that works without connectivity issues with current 1.39 firmware. For some reason 1.36 and 1.37 works without connectivity issues while using wireless CarPlay.
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Response from developer

Hi @william6545, June 9: Based on your new info, could you please update your star rating now that you know it is a Uniden issue and not our app. Ratings mean a lot to us. Please reconsider your Star rating. Thanks. There must be an issue with your detector or other BT devices causing interference as no one else is reporting BT connection issues with the app. The app won’t disconnect unless the signal from the radar detector is weak (distance to phone or bad detector BT chip) or the BT signal is interrupted by another device or external force. You can verify the signal strength in the app at the bottom of the classic alert screen or by tapping on the signal button in the lower right of the map screen.

The R4 is so annoying without this app

Truly works like magic it removes the false alarms and visually looks great

Must have

If you own an R4, just get this app.

Excellent

Wonderful app, works extremely well, worth every penny. Optimized and runs better than 95% of apps I’ve used and is actually very functional. I love the report at the end of the drive; as someone who is enthusiastic about tech, it’s cool to see what it’s actually doing for me! Bravo

Developer apps

User experience

🐞

Reported Bugs

2 issues

Speed limit warning changes automatically

Bug

Advanced false assist doesn't work well in small towns

Bug

Requested Features

6 requests

Built-in media player with controls

Feature

Waze integration to show speed trap locations

Feature

Option to change screen colors

Feature

Ability to mark false alerts on the map

Feature

CarPlay support

Feature

Option to mute startup process

Feature

FAQ

What is R4 Companion and what does it do?

R4 Companion is an app designed to enhance the functionality of your Uniden R4 or R4w radar detector. It provides intelligent alerts, advanced muting capabilities, and GPS-based features to improve your driving experience and reduce false alarms.

What are the key features of R4 Companion?

Key features include SpotLocks™ for location-based false silencing, customizable heads-up display (HUD) with detailed threat information, advanced muting options like 'Ghost' muting and 'Passive Mute™', custom phrases for audio announcements, and real-time signal strength meters.

How much does R4 Companion cost?

The app is a paid application. All future updates to the app are included free of charge for purchasers.

What are the compatibility requirements for R4 Companion?

R4 Companion requires a Uniden R4 or R4w radar detector with US Version 138 (for R4) or 121 (for R4w) firmware to function correctly. The app will not work without the specified firmware.

What are common use cases for R4 Companion?

Common use cases include reducing annoying false alerts from sources like automatic doors or radar-based cruise control systems through intelligent muting and GPS location learning. It also helps drivers stay informed about real threats with detailed and customizable alerts.