JB4 Mobile

JB4 Mobile

By Dmac Mobile Developments, LLC

  • Category: Sports
  • Release Date: 2014-02-12
  • Current Version: 2.5.8
  • Adult Rating: 17+
  • File Size: 43.67 MB
  • Developer: Dmac Mobile Developments, LLC
  • Compatibility: Requires iOS 12.0 or later.
Score: 3.84884
From 172 Ratings


Note that this app requires a custom Bluetooth Low Energy module and an iOS device that supports Bluetooth Low Energy (iPhone 4S and newer) to operate. Info on the module can be found here: https://www.jb4tech.com/forum/model-specific-engine-tuning-modification-discussion/jb4-mobile/1192- JB4 Mobile is a mobile data logger and display for use with the JB4 tuner from Burger Motorsports. JB4 Mobile allows you to monitor multiple parameters of your JB4 equipped car at once. Parameters such as boost psi, rpm, fuel trims, air/fuel ratios, ignition advance, fuel pressure and much more are all available. Features: Data Monitoring Data logging Graphing of logged data Email saved logs Read/Delete codes Modify boost/fuel mapping Modify nitrous/methanol settings Download and update JB4 firmware Multiple gauge designs G-Force Meter GPS Speedometer Demo Mode is available in the settings menu. JB4 ® is a registered trademark of Burger Motorsports Inc ® and is used with written permission.



  • Waste of money & support is useless

    By JB4 user Sd
    Don’t waste your time or money
  • Most of the time

    By crsroc
    I’ve been an advocate for the company for many years. Great products. The only issue with the app sometimes the gauges will freeze whether on Bluetooth or OTG connection. I mean it does work most of the time. As intended.
  • Could be so much better.

    By Zooted212
    Very buggy. The email only support is very frustrating. I also highly recommend not purchasing the methanol kit until they can get lines that don’t leak and fill the trunk up with deadly and expensive methanol. The gains are good but I like peace of mind. I used to be an advocate for jb4 but with all the money they are making I don’t see it being applied to research and development.
  • Just needs a little tweaking

    By Lance.Christian
    Should be a little more detailed on the maps and should consider making Apple CarPlay compatible. Other than that the app works great
  • Product Improvement Request

    By ctwinn
    Have only been using for a few rips so far and don’t have any major complaints, but immediately as I’m driving I notice a few things that in my mind should be in this app already and can’t be that hard to build out… 1. Name my custom maps 2. Let me see one or a few gauges at a time (screen layout) 3. Apple CarPlay!
  • What is up with everything going mirrored image?

    By Ultimate Camaro
    What is up with everything going mirrored image? And then freezing like that until you delete the app and reinstall it?
  • Not working

    By 21Dave21slc
    Downloaded, paid … app will not login!
  • It’s good, but could be better

    By Jeff Lenz
    The app works well. I would love it if it supported apple car play, so the gauges could been seen on the cars touchscreen, instead of the phone. Either way, great app so far, no issues.
  • Let me name my maps

    By mr jeffrey
    Great app and has worked for me reliably for the 9 months that is r been using it. It’s missing an important, and likely easy to implement, feature. Let me custom name my maps. Every time I got to switch, I have to go find the reference for the map set I have and read through it. It makes the on-the-fly switching way more painful than it needs to be. I’d happily have submitted this as a feature request but the support links in the app page just push you to the JB4 forums. That’s not the same thing.
  • CarPlay

    By rexamerius
    Please add this app to Apple CarPlay. It would be nice to use my car’s screen to see my gauges as opposed to my phone.