R8 Companion 4+

Uniden R8 Radar Detector

Angela Mcarthur

    • $9.99

iPhone Screenshots


Powerful, yet simple! Quiet your R8 until a real threat is near. Set it, forget it, and drive… It just works! *FEATURING SpotLocks™ - state-of-the-art false lockouts.

R8 Companion™ is a feature rich app, designed to give you the most out of your R8 radar detector, while enhancing your driving experience along the way. Featuring intelligent alerts and advanced muting! R8 Companion™ is the COMPLETE solution to enjoying your R8.

The R8 Companion™ app leverages years of optimizations and features from V1 Companion™ (Available separately on the app store for owners of the Valentine One radar locator).

Enhanced GPS location based 'false muting' via SpotLocks™ - All future updates to this app are free to purchasers of R8 Companion™

R8 Companion™'s alerting and muting systems are fully optimized for the R8 platform. Intelligent voice announcements and on-screen visuals will always keep you informed and aware of the situation around you.

NOTE: R8 Companion™ requires a Uniden R8 radar detector with US Version 127 firmware to function correctly.

R8 Companion™ full feature list:
• SpotLocks™ - Location based false silencing has never been this good or easy. Turn on the intelligent location-based learning and let R8 Companion™ do the rest. Or you can manually 'lock' or 'unlock' locations with ease from the main alert screen.
• SpotLocks™ works seamlessly with your R8’s built in 'auto mute memory' locations. If you create or delete a location from the app it will apply the changes to your R8 at the same time.
• Option to play detector tones in app.
• 'Proximity' meter - leverages the high resolution signal strength and direction information provided by the detector to show you a better representation of the signal's source.
• 'K & X falses in area' meter shows you how many possible false alerts exist in the area you are travelling based on the accumulated SpotLock data™.
• 'Custom Phrases' for a given threat's audio announcements.
• High resolution meters for the priority alert (Not limited to the # of bars on the R8 display).
• Customizable heads-up display (HUD).
• HUD displays the priority alert's band, signal strength, frequency, & direction. The HUD is color coded between real threats & muted false signals.
• HUD of the secondary alerts' bands, signal strengths, frequencies, bogey counts & directions.
• Mute rear K & X band signals independently.
• Advanced BSM/CAS/Ka False Muting (Optimized for the R8 platform).
• Ability to set the R8’s internal detector settings from within the app (See below list, more detector settings coming in free future upgrades). *Requires US Version 127 firmware:
All Threat
Quiet Ride
Limit Speed
Rear K Mute
X Band
K Band
K Pop
K Filter
K Scans
Ka Band
Ka Pop
Ka Filter
Ka Scans (Narrow, Wide, Segmented)
Ka 1-9 Segments
Auto Mute Volume
Change Alert Display NOTE: A bug in firmware makes it so you have to select #3 from the detector.
Display Color
Display Brightness
Priority Band
Auto Mute Memory ON/OFF
Select Auto Mute Memory Bands
• 'Ghost' muting quiets false alerts when you are stuck traveling near a false emitting vehicle.
• "Passive Mute™"- Quiets the R8 below user set speeds & during weak K & X signals.
• Bogey count display showing total number of threats.
• Vehicle speed (MPH or KMH) display. Speed is color coded for each alert type.
• Mute status with the ability to manually mute/unmute alerts as you need.
• Detailed & intelligent voice announcements of direction, band, frequency, strength, number of alerts, occurrences of mixed signals and more.
• Automatic muting of Ka, K, and X bands ('Time before mute' set for each band).
• 'Reduce Speed' notification for user set speed.
• ‘Urgency Alerts™’ - Unmutes growing threats & announces these alerts via voice & notifications.
• ‘Alert History’ - View your past alerts with detailed information about each encounter.
• Compass heading.
• Imperial/metric units.
• Detailed trip summary at the end of your ride including duration, distance, alerts, muting stats, battery, and more.
• iPhone & Apple Watch notifications of direction, band, & frequency of each alert.
• Tips/Help system.

What’s New

Version 1.09.9

"Feels like a new detector!", -e This is what people are saying after using R8 Companion™ - See what all the fuss is about, try it for yourself!

If you liked R8 Companion before this release, you are going to LOVE it after! This update features the ability to modify the most popular settings on your R8 radar detector right from the app! See the list below for a complete list of the settings you can modify (more settings coming in future updates). 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!

Version 1.09 Updates:
• New onboarding screens to help new users perform the one-time pairing process with their detector.
Other recent updates prior to 1.09:
• Fixed bug when "Detector Tones" are enabled to play through the app and the laser tone would not play.
• Added the option to have the radar detector's alert tones play through the app. The new setting is found in the 'Audio Settings' of R8 Companion.
• 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.
• Fixed issue when using the largest system and/or bold font would cut off/wrap some UI text.
***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.
• Improved Bluetooth connection speed (now up to 60% faster) and re-connection reliability.
• New 'Alert History' formatting.
• Improved 'quiet ride' / 'GPS mute' system.
• If GPS is turned off/doesn't connect on the detector, the app will default to the iPhone GPS providing a more precise GPS experience.
• New 'GPS Warmup' feature that keeps the detector quiet for a 'user set' number of seconds or until a GPS connection is established with your detector and/or iPhone. Useful for parking garages etc.
• New ability to unlock a Ka 'mute mem' or 'auto mem' from within the app.
• Added ability to turn ON/OFF announcements for when the SpotLocks system locks a location (New setting can be found on the audio settings screen).
• Tuned existing K-Notch for Acuras/Hondas based on historical data.
• Added ability to tun ON/OFF the function of SpotLocks automatically writing the location to your detector's "manual mute" memory when a locked SpotLock is created (This setting is found on the map screen).
• Added volume adjustment sliders for the detector's main and mute volume levels to the main alert screen.
• Added the ability view and change the R8 mode between Advanced, Highway, City and Auto to the main alert screen.
• Added a new state for the 'mute button' on the main alert screen. It will now show when the detector is no longer receiving a signal, but is still displaying it on the detector (known as 'signal latch'). The 'mute button' will show "Sig Latch" to signify the signal is no longer being detected.
• Added a new R8 settings screen to modify some of the more popular R8 settings (more to come in future updates). The list of settings that can be modified are as follows:
• Laser ON/OFF
• X Band ON/OFF
• K Band ON/OFF
• K Pop ON/OFF
• K Filter ON/OFF
• K Scans (Narrow, Wide, Extended)
• Ka Band ON/OFF
• Ka Pop ON/OFF
• Ka Filter ON/OFF
• Ka Scans (Narrow, Wide, Segmented)
• Ka 1-9 Segs ON/OFF
• Auto Mute Volume ON/OFF
• Change Alert Display (#1, #2, #3 - NOTE: Bug in firmware makes it so you have to select #3 from the detector. The firmware won't read or write display option #3).
• Select Display Color
• Select Display Brightness
• Select Priority Band
• Auto Mute Memory ON/OFF
• Select Auto Mute Memory Bands

Ratings and Reviews

4.8 out of 5
268 Ratings

268 Ratings

SuperWhy22 ,

Better than bad, it’s good

Works great and makes the detector even quieter. Setup was a breeze and so far it has connected to the detector every time without issue. It takes a few minutes to understand the capabilities added by the app. I like the trip overviews when the detector disconnects. I’m not sure if there’s a way to bring a trip summary back up however. There’s a detection log but there’s info in the summary popup not in the log (distance, time, spotlocks added, etc). Interface is a bit clunky/unrefined but the functionality is excellent.

Developer Response ,

Thanks for the support and comments. I will add the ability to bring back the "last" trip details to my feature list for a future update. I like that idea!


Works Very Well with my R8!

I have been using this app for about 2 weeks and love it. Set my speed alert to 80 and it just works. This app had blocked out a lot of the annoying fake alerts and has made the R8 even quieter. The only issue I have had is that is does not consistently connect to the R8. I need to close the app and restart it. Other than that no other issues. Well worth the purchase!

The Reflex ,

Changes R8 setting

Once I installed and paired this app to my R8 detector, it immediately kept putting my detector into over speed limit warning of 60 mph. No matter how many times I went in to reset it and turn it off, it would immediately go back to the 60 mile an hour over the speed limit warning. The moment I killed the app and changed the setting back, it would work like it did before with no speed limit warning. However the moment I engage the app and it paired to the detector, it goes right back to changing the setting to over 60 mph speed limit warning. Therefore I have deleted the app and cannot recommend this product.

Developer Response ,

Hi Reflex,

This is a setting in the app, simply go into the “audio settings” at the bottom of the main alert screen and then change the over speed limit to what you want. It is set to 60 in the app by default. Please consider changing your review once you have verified this fixes your issue. Thanks!

App Privacy

The developer, Angela Mcarthur, 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.

Privacy practices may vary, for example, based on the features you use or your age. Learn More


  • Family Sharing

    Up to six family members can use this app with Family Sharing enabled.

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