JB4 Mobile

JB4 Mobile

By Dmac Mobile Developments, LLC

  • Category: Sports
  • Release Date: 2014-02-12
  • Current Version: 2.4.4
  • Adult Rating: 17+
  • File Size: 42.25 MB
  • Developer: Dmac Mobile Developments, LLC
  • Compatibility: Requires iOS 12.0 or later.
Score: 4.0678
From 59 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: http://www.n54tech.com/forums/showthread.php?t=21742 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 Mobile is not affiliated with Burger Motorsports.



  • It’s more than performance

    First off, this app is amazing. It brings the driving experience to a whole new level. Not only that, but just a few days ago, a mile from my house, I blew an upper radiator hose. With the aid of the jb4, I was able to monitor the coolant temp (not available on a stock 335) and safely drove home without fear of overheating. I installed an iPad mini, landscape view, above the center vents and very happy with everything. It’s just awesome, highly recommended.
  • Refund

    By Diesel10_0000
    I’d like a refund please as I’m returning the JB4. Had for less than a week, and car has several error/malfunction messages now
  • Stopped working

    By LauderdaleJJ
    Since the update the app will not connect to the jb4. Don’t waste your money till fixed!
  • Worst customer service

    By Temp0717
    Won’t call, only email. Takes a whole day to get one line replies. Going on day three and still can’t tell me why I’m having engine lights and issues with app.
  • Update back to 5 stars.

    By c5ct
    Edited. Back to 5 stars. Donnie fixed the graphing issues and is back to normal. Anyone that does not like the latest update. Try the revised one on the TestFlight app. You may have to ask for a TestFlight invite. Please revert back to the old version. The update is terrible. Graph graduations are better at 5, graph buttons overlay on phone icons take multiple presses to close graph? Let us scroll to the end of the graphed log, pop up for detailed graph info back to normal as well. All around update makes this app worse. I’d give it 5 stars the way it used to be. Icon legend is harder to read. I’ve emailed you during the test flight version that it was bad.
  • Why I hate this app

    By i hate jb4
    You can’t connect ever wouldn’t recommend to anyone
  • A must have

    By Osunar
    It’s an amazing app! A must have for Jb4 owners. You can change maps on the fly via Bluetooth, in case you can’t find e85 and have to run on 93 only, it’s a cinch to lower boost a bit so you don’t damage your engine! All the different read outs are very accurate as well!
  • Need to buy Bluetooth wireless connection

    By Samuel Ceja
    Didnt know i have to buy a addittional 140 dollar Bluetooth connection that i have money for so now im stuck with this app i spent 30 dollars on that im not gonna use
  • Amazing App

    By CntryClub007
    This app is awesome, can change between Methanol Injection and standard all from the phone. Can also log data for tweaking purposes. Clearing codes paid for itself already once. Great piece of kit!
  • Works Great!

    By Greg21040
    It works great, but it’d be better if it worked in Apple CarPlay.