Archived App (Last seen on 12 May 2026)

This is an archived listing of the app previously available on the App Store.

Although the app is no longer distributed by Apple, you can still view its description, screenshots, version history, ratings, and metadata for reference.

Details

  • Released
  • Updated
  • June 14, 2017
  • August 28, 2023

Features

KARR BT screenshot #1 for iPhone
KARR BT screenshot #2 for iPhone
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About

This app allows users to remotely control their vehicle's security system. It enables locking and unlocking doors, retrieving the last known location, and adjusting system settings.

Lock/unlock vehicle
Get last location
Change security settings
Vehicle security system companion
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What users say

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What's New in KARR BT

2.22

August 28, 2023

This app has been replaced by the new Karr Security app. -Warning message added requesting users change over to new app

User reviews

Love the customization

I had my system set at 8 when I lived in my apartment complex and was happy, my car was one of the few that was not thrashed except for a chipped window.

What I really liked was how I could change the sensitivity. I moved near Disneyland the fireworks kept setting off the alarm. I went to the dealer and they showed me how to reduce the sensitivity, and now I sleep all night lol.

Def recommend.
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Did not meet the quality standards that were claimed

I found the Krr Bt security system to be overpriced and outdated, making it a useless addition to my security setup. The accompanying app for the security product was also outdated and ineffective. I won't go into the specific issues that other reviews have mentioned. Additionally, despite some dealerships claiming that this security system could save you money on car insurance costs, it's important to note that this is not always the case.
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Doesn’t connect with Bluetooth on iPhone 14

I get a “Attention…Bluetooth is necessary to interact with the security systems. Please switch on your phone’s Bluetooth before continuing”.
My Bluetooth is on, I have restarted my phone, bounced the Bluetooth on my phone multiple times, and cannot get past the initial login. Thank you KARR BT for this piece of junk.
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Glitch?

The app has logged me out completely and when I tried to log back in, it did not recognize my email … it says it’s an incorrect email, but that is in fact the email I used when I purchased my vehicle and the email they used when I was given a temporary password for the app! Not sure what to do… other than call customer service although this should not be an issue to begin with
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Glitchy Show Violations Tab

This KARR system was installed on all of the cars at the Honda dealership here in Pasadena, CA. On day 2 after buying my new car, someone tried to steal my tires and my car alarm went off and scared the thieves away. Yay! It was neat because in the “Show Violations” tab of the app, it accurately showed the time of the incident. However, when reflecting back upon the “Show Violations” tab, the time has adjusted every single time I look at the tab, so the time of the incident is no longer the correct time. This is concerning to me because I have about 4 other violations under this tab, but the time keeps changing every day that I look at it, so I cannot correctly locate where I was at the time of these said “violations”. Would prefer for an accurate reading because otherwise this part of the app is useless.

I’m also bummed out because since it is a Bluetooth app, it only works when you are close to your car. So if someone is trying to steal something from your car, and you aren’t near it, the app will not tell you this is happing. The car alarm should go off, but when you are parked and at church, grocery shopping, running errands, you don’t necessarily hear the car alarm go off until you see the aftermath of what the thieves stole. This being said, the app needs a lot of work. The car alarm going off I am super grateful for, but the app itself needs a lot of improvement.
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Developer apps

User experience

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Reported Bugs

10 issues

Bluetooth connection fails despite being enabled

Bug

App logs out unexpectedly and doesn't recognize email on login

Bug

Violation timestamps change every time app is opened

Bug

Location shows incorrect position (3000 miles away)

Bug

App fails to detect vehicle despite proximity

Bug

Location data doesn't update for weeks

Bug

Scan function doesn't show results or hangs

Bug

App interface doesn't fit properly on modern phone screens

Bug

Alarm sensitivity settings don't trigger properly

Bug

App shows vehicle out of range when standing next to it

Bug

Requested Features

11 requests

Live GPS tracking regardless of Bluetooth range

Feature

Real-time notifications for security events

Feature

Apple Watch app integration

Feature

Siri shortcuts support

Feature

Home screen lock/unlock widget

Feature

Hands-free proximity detection unlock

Feature

Extended range beyond Bluetooth

Feature

Automatic location updates

Feature

Modern UI/UX redesign

Feature

Support for individual door/window control

Feature

Push notifications for break-in attempts

Feature

FAQ

What can I do with this app?

This app serves as a companion to your vehicle's security system. You can remotely lock or unlock your car doors, view its last known location, and modify various settings related to your security system.

Is this app free to use?

Yes, the application is available for free. There are no advertised in-app purchases or advertisements mentioned, suggesting a complimentary service for users of the associated security system.

What is the primary function of this app?

The primary function is to provide remote control and monitoring for your vehicle's security system. It allows for convenient management of your car's security features directly from your mobile device.

Who is this app designed for?

This app is specifically designed for customers who have installed a KARR BT security system in their vehicle. It enhances the functionality of the security system by offering mobile access.