# JB4 Mobile

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

Canonical page: [https://chrome-stats.com/d/com.dmacpro91.jb4\_mobile](https://chrome-stats.com/d/com.dmacpro91.jb4_mobile)

## Overview

- **ID:** `com.dmacpro91.jb4_mobile`
- **Platform:** Android
- **Type:** Android app
- **Status:** Available
- **Publisher:** Dmac Mobile Developments, LLC
- **Category:** SPORTS
- **Downloads:** 54,346
- **Rating:** 3.44 / 5 (751 ratings)
- **Version:** 3.0.5
- **Last updated:** 2025-12-31
- **First published:** 2014-04-16
- **Publisher country:** US
- **Size:** 38 MB
- **Data as of:** 2026-09-19
- **Store listing:** [Google Play Store](https://play.google.com/store/apps/details?id=com.dmacpro91.jb4_mobile)
- **Website:** [http://www.n54tech.com/forums/showthread.php?t=21742](http://www.n54tech.com/forums/showthread.php?t=21742)
- **Privacy policy:** [https://app.termly.io/document/privacy-policy/78ba720b-3a1e-4062-a6d2-409fa6ed0e15](https://app.termly.io/document/privacy-policy/78ba720b-3a1e-4062-a6d2-409fa6ed0e15)

## Description

JB4 Mobile is a powerful data logger and display application designed specifically for use with the JB4 tuner from Burger Motorsports. This app lets users monitor real-time vehicle data such as boost, RPM, fuel trims, air/fuel ratios, ignition timing, and more, providing comprehensive insight into your car's performance.

Featuring a fully modernized user interface, JB4 Mobile offers extensive customizations including gauge themes, built-in raw CSV data viewing, revamped user adjustment and water-methanol injection (WMI) editors, and seamless integration with backend servers. Users can log data, graph logs, export log files via email, read and clear diagnostic codes, update JB4 firmware, switch performance maps on the fly, and enjoy auto wide-open-throttle logging. It supports both JB4 Connect Kit and BMS Data Cable users, with clear instructions for connection and setup. JB4 Mobile is the ultimate companion app for JB4 equipped vehicles, empowering performance enthusiasts to tune, monitor, and optimize their rides effortlessly.

## Rankings

- #290,184 — Overall

## Permissions and access

### Permissions

- `android.permission.ACCESS_COARSE_LOCATION`
- `android.permission.ACCESS_FINE_LOCATION`
- `android.permission.ACCESS_NETWORK_STATE`
- `android.permission.ACCESS_WIFI_STATE`
- `android.permission.BLUETOOTH_CONNECT`
- `android.permission.BLUETOOTH_SCAN`
- `android.permission.FOREGROUND_SERVICE`
- `android.permission.FOREGROUND_SERVICE_CONNECTED_DEVICE`
- `android.permission.INTERNET`
- `android.permission.POST_NOTIFICATIONS`
- `android.permission.VIBRATE`
- `com.android.vending.CHECK_LICENSE`
- `com.dmacpro91.jb4_mobile.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION`

## Review summary

The JB4 Mobile app offers a user-friendly experience with many customizable gauges and performance options, backed by strong customer support and reliable logging when connected. However, many users suffer from frequent connection problems, firmware update failures, and stability issues. The recent UI changes are unpopular, causing usability issues. Despite these drawbacks, the app significantly enhances car performance and is highly valued by those who can maintain a stable connection.

### Pros

- User-friendly interface with many options and gauges to monitor and adjust car performance.
- Excellent customer support and communication from the tech team.
- Reliable logging and data capture when connected properly.
- Enhances car performance significantly, making driving more fun.
- Generally works well when connected, with some users reporting stable connections especially when following setup instructions.

### Cons

- Connection issues are frequent; app often fails to connect or maintain connection with the JB4 device.
- Firmware updates often fail or get stuck in flashing mode, causing frustration.
- New app interface is disliked, with some gauges not working and user adjustments timing out.
- Requires location services to be enabled to connect, which some users find inconvenient.
- App stability issues such as crashes, screen resolution problems, and timeout issues especially with gauge displays and Android Auto limitations.

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Source: [Chrome-Stats](https://chrome-stats.com/d/com.dmacpro91.jb4_mobile)