3.7
684 reviews
10K+
Downloads
Content rating
Everyone
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About this app

The brand new JB4 Mobile application is finally ready for public release and has lots of great new features including:
*Gauge theme customizations
*Built-in raw CSV data viewer
*Revamped User Adj./WMI data editors
*New modern UI completely rewritten from the ground up
*More seamless integration with our backend servers

JB4 Connect Kit Users:
1) Install the Connect Kit per the installation guide for your vehicle
2) Create your account/sign in with this app
3) Ensure JB4 Mobile has all requested permissions and that location services are enabled (required for BLE scanning on some devices)
4) Tap the Connect button in JB4 Mobile

BMS Data Cable Users:
1) Select the OTG option in Settings Tab->Advanced->Connection
2) Connect the OTG cable to your phone/tablet BY ITSELF
3) Connect the BMS Data Cable to the OTG cable
4) Tap the Connect button in JB4 Mobile

About The App:
JB4 Mobile is a mobile data logger and display for use with the JB4 tuner from Burger Motorsports.

JB4 Mobile allows you to monitor and log multiple parameters from your JB4 equipped car. Parameters such as boost, rpm, fuel trims, air/fuel ratios, ignition advance and much more are available.

Current Features:
Live gauges
Data logging
Data graphing
Log export via email
Code reading/deletion
Modify User Adj. (boost, fuel, etc.) settings
Modify WMI settings
Switch maps on the fly
Auto WOT logging
JB4 Firmware Updating

JB4 ® is a registered trademark of Burger Motorsports Inc ® and is used with written permission.
Updated on
3 Nov 2024

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region and age. The developer provided this information and may update it over time.
No data shared with third parties
Learn more about how developers declare sharing
This app may collect these data types
Personal info and App info and performance
Data is encrypted in transit
You can request that data be deleted

Ratings and reviews

3.9
642 reviews
Lee T
31 October 2024
Not sure what happened with this latest update but I just wanted to work when I turn it on and it connects to my jb4. Now I only have one choice for a color scheme on my gauges and when I have the gauges on they don't stay on. They time out with my phone and shut off. The previous Edition would stay on if you had the gauges up.
1 person found this review helpful
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Dmac Mobile Developments, LLC
5 November 2024
You can customize the gauges with many different colors and layouts. Just go to the Theme Editor in the Settings Tab. The app should stay active as long as you don't navigate away from it. Email me if you need more help. support3@jb4connectkit.com
Zack
22 July 2021
Does it's job very well with little issues. Occasional crash when pushing new tune settings in, and the resolution can get screwed up if you flip to portrait and landscape too many times really quickly. Every very minor bug is fixed with a restart of the app. JB4 Support is amazing. The system has made our 2019 VW rocket like it should have from the factory. It is loads of fun fine tuning your map bit-by-bit and getting more power, economy, and fun. Hands down recommend!
20 people found this review helpful
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Dmac Mobile Developments, LLC
8 September 2021
So glad you're finding the app useful. Please be sure to submit any crash reports to us so we can squash those bugs. Thank you for the review! :)
Squigglylinezz
18 February 2022
App is nice when I can actually use it. When connected it never wants to read any of the gauges besides boost, it randomly starts "logging" but won't turn off, and it won't read codes. If everything worked they way it should the app would be phenomenal. It's kinda disappointing that I paid like $20 for an app to have the ability to read gauges, data log, scan and clear codes but the only way I can get it to work is by uninstalling the app and then reinstalling.
27 people found this review helpful
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Dmac Mobile Developments, LLC
22 August 2024
This is a common issue and has nothing to do with the app itself. All of these problems are because you either don't have the CANbus wires installed or they are installed incorrectly (wrong orientation). For anyone else reading this, always contact support@jb4connectkit.com and we'll help get you squared away.

What's new

Minor bug fixes.

App support

About the developer
DMAC MOBILE DEVELOPMENTS, LLC
support@dmacdev.com
3 N Main St Winchester, KY 40391 United States
+1 859-359-6820