JB4 Mobile

3.0.7

Dmac Mobile Developments, LLC

3.60

703 reviews

50,000+
Downloads

$27.99

JB4 Mobile is a data logger and display for use with the JB4 tuner.

Pros & Cons

Tight JB4 ecosystem integration (live gauges, logging, and editing)
On-the-fly map switching and firmware updating streamline tuning workflows
Data export via email enables easy sharing and analysis
Comprehensive feature set including Live Gauges, Data Graphing, and code reading/deletion

Competitors may highlight broader Bluetooth/BLE scanning and device-scanner capabilities not prominently advertised here
Some users may prefer more universal scanning features outside the JB4-specific workflow
The app relies on location permissions for BLE on some devices, which could impact privacy considerations for some users

About JB4 Mobile

JB4 Mobile is a sports app developed by Dmac Mobile Developments, LLC.

How many times has JB4 Mobile been downloaded?

JB4 Mobile has been downloaded 53 thousand times. In the last 30 days, the app was downloaded 280 times. It is ranked #2 in sports.

What is the rating of JB4 Mobile?

JB4 Mobile is rated 3.60 out of 5 stars, based on 700 ratings.

Is JB4 Mobile free?

JB4 Mobile costs $27.99 to download. The APK download size is 28.69 MB. The latest version available is 3.0.7. The last update was on November 25, 2025.

What are the requirements for JB4 Mobile?

JB4 Mobile requires Android 4.3+ or higher. The app has a content rating of Everyone. The app has been available on Google Play April 2014.

Description

The brand new JB4 Mobile application is finally ready for public release and has lots of great new features including:

More data about JB4 Mobile

Price	$27.99
Total downloads	53 thousand
Recent downloads	280
Rating	3.60 based on 700 ratings
Ranking	Top ranked
Version	3.0.7
APK size	28.7 MB
Number of libraries	15
Designed for Android	4.3+
Suitable for	Everyone
Ads	NO ads

App Performance Report

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Alternative downloads for the JB4 Mobile app

JB4 Mobile compared with similar apps

Common keywords of similar apps

Cable User Adj Otg Parameters Fuel Logger Display Wmi Kit Users Tap Button Bms Burger Motorsports Log Boost Logging Modify Bug Fix Viewing Mobile Data Connect Settings Tuner Features App Firmware

Keywords missing from this app

Bluetooth Ble Devices Device Supports Scanner Scan Recent Connection Phone Application Time File Low Code Grbl Smart Wifi Version Https Monitor Displays Sensor Energy Advanced Advertising Cloud Efi Nfc Pro Note Compatible Added Service Tuning Beacon Support Nrf Rt Street Update Bt

Google Play Rating history and histogram

Downloads over time

JB4 Mobile has been downloaded 53 thousand times. Over the past 30 days, it has been downloaded 280 times.

Changelog of JB4 Mobile

Show changelog

Developer information for Dmac Mobile Developments, LLC

Dmac Mobile Developments, LLC

support2@jb4connectkit.com

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Comments on JB4 Mobile for Android

★★★★★ Gregory Feliks · Nov 5, 2024

Why must location services be enabled to connect with latest update? Great customer support!

★★★★☆ Won T. Tree · Nov 1, 2024

This just started happening yesterday. I am not able to update to connect kit to the new firmware.

★★★★★ Xavier Z · Sep 19, 2025

The app and the tuner both work great. Never had issues with BT connection or gauges not working, never ever, not even single time.

★★☆☆☆ QNS · May 13, 2023

Update says fix for previewing csv file. Instead of that, the opposite was done. Not able to view logs on the app any more like I usually did, now the log has to be emailed and opened another way

★★☆☆☆ Ryan · Sep 15, 2024

The hardware I'm a little disappointed in. $150 for a BT dongle is overpriced imo, so I opted to hook up an OTG cable to use the app. I am required to unhook the otg from the Jb4, then plug the phone in, and plug the Jb4 back in each time. This is not ideal since I've mapped the cables including the OTG connection under the hood. Overall the Jb4 is a bit pricey, but works well. The app, IDK... I would have just purchased a tune if I knew I'd spend over $700 allin for seamless app connectivity.

★☆☆☆☆ Joe Mcdolens · Apr 17, 2022

I have this for my mk7 gti and although the tune is working fine the app itself chooses when it wants to work and for how long it won't connect, or it says it does but won't show ANY information

★★☆☆☆ Lee T · Oct 31, 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.

Google Play Rankings for JB4 Mobile

Top rankings

Rank	Country	Category	List
2	United States	Sports	Top Paid
43	Canada	Overall	Top Paid
5	Canada	Sports	Top Paid
46	Canada	Applications	Top Paid
7	Switzerland	Sports	Top Paid
7	Denmark	Sports	Top Paid
7	Finland	Sports	Top Paid
7	Mexico	Sports	Top Paid
7	Portugal	Sports	Top Paid
7	Saudi Arabia	Sports	Top Paid

Show all market rankings

Ranking history in Canada

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