JB4 Mobile App Reviews

The new update brings the app to the 21’st century. It’s great and let’s you choose exactly what parameters you want to see and match the colors to your car’s theme. Only thing we need now is Carplay integration! There is an app developer who created exactly that. It’s an app called “OnTrack”. Let’s get his technology unto JB4!

It’s needed the app for my tuner. For the most part it’s great on the fly. I’m able to check my logs, switch my map, change my tune. Love it. Unfortunately I’m missing some parts of monitoring. I’m sure it’s due to availability and car. But I’m unable to get my Trans temp, oil temp, and some other. I also do wish there are more different styling gauges. 5.26.25 - So the update on the app is nice. FYI…the graphs and such can be found in the files folder if you have an iPhone.

Great app for a great product but it really needs to be integrated with Apple Carplay. I’m hoping for the upgrade soon. Then I will switch my rating to 5 stars.

Purchased the app a few years back when I worked for a BMW performance shop and hadn’t used it in quite some time. Downloaded today so I could interface with my wife’s car and I have to pay for an app I’ve already purchased once?! The whole reason I paid for it the first time was so I could use it when I wanted. Honestly you’d think if you bought a $500+ programmer and paid the extra for Bluetooth connectivity bringing the total over $700 the app would come with it.

Please develop car play support so we can monitor gauges on our car screens!

Screen does not stay on when driving around have to keep touching screen or re opening screen

Worked great until I installed iOS 26… now the screen turns off / goes to sleep with the jb4 gauges displayed - unlike before

Please automate the third gear logging.

Couldn't find another way to reach out to the developer. The app works fine, however since updating to iOS 26, it no longer keeps the screen on when you're using the gauges, which defeats the purpose of gauges. On previous iOS versions, the app would keep the screen on and the phone unlocked while using it so you could view the gauges and record logs. Please get this fixed or add a setting to force the screen to stay on!

App works as expected, but since iOS 26- app no longer remains logging or showing data past lock screen timer? Please update to allow use during driving! Thanks

ever since updating recently, app auto locks and makes monitoring gauges nearly impossible

Screen turns off since ios26.. still waiting for a fix..

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!

Should be a little more detailed on the maps and should consider making Apple CarPlay compatible. Other than that the app works great

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 t

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.

What is up with everything going mirrored image? And then freezing like that until you delete the app and reinstall it?

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.

So I’ve had the jb4 app and tune in my 2019 Volkswagen jetta s 1.4t 6speed since April. In the beginning all the tunes were there but now for some reason a few are deleted from the app. Also I can’t see a lot of the temp guages. I believe the only one that does work for this car is the water temp. It would be awesome if burger motorsports would do a software update for my car!! There hasn’t been any since I’ve had the app. Other than that tho I absolutely love the jb4 tune and app. It makes such

It's a big yes For me !

Love the app, but the customer service behind it even more !

Love the app just wish it had CarPlay capability!

I spend $600 on the JB4 and another $28 on this app and I have to keep my phone out to see the gauges. Insane. Despite that, app works great. CarPlay is a no brained addition.

The owner emailed me to help me with my problem that blew me away.

I’ve been using this app for about 3 weeks now and have had to delete it and download it again twice because the text on the goes inverse for no reason and won’t switch back. Other than that it does what it’s suppose to do.

The overall experience of the app is good however I’m surprised to why the developers do not release the capability for apple CarPlay