JB4 Mobile vs JB4 PRO
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
JB4 Mobile
This app acts as a mobile data logger and display for vehicles equipped with a JB4 tuner. It allows users to monitor and log various engine parameters, view data in real-time, and adjust settings for performance tuning.
- Live gauge monitoring
- Data logging and graphing
- User adjustable settings
- WMI settings modification
- On-the-fly map switching
- Code reading and deletion
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The brand new JB4 Mobile application is finally ready for public release and has lots of great new features including: *Gauge theme customizations *Built-in raw CSV data viewer *Revamped User Adj./WMI data editors *New modern UI completely rewritten from the ground up *More seamless integration with our backend servers JB4 Connect Kit Users: 1) Install the Connect Kit per the installation guide for your vehicle 2) Create your account/sign in with this app 3) Ensure JB4 Mobile has all requested permissions 4) Tap the Connect button in JB4 Mobile About The App: JB4 Mobile is a mobile data logger and display for use with the JB4 tuner from Burger Motorsports. JB4 Mobile allows you to monitor and log multiple parameters from your JB4 equipped car. Parameters such as boost, rpm, fuel trims, air/fuel ratios, ignition advance and much more are available. Current Features: Live gauges Data logging Data graphing Log export via email Code reading/deletion Modify User Adj. (boost, fuel, etc.) settings Modify WMI settings Switch maps on the fly Auto WOT logging JB4 Firmware Updating JB4 ® is a registered trademark of Burger Motorsports Inc ® and is used with written permission.
JB4 PRO
Integrate your performance tuner with your smartphone to adjust engine maps, view real-time data, and manage system settings. This app requires a specific Bluetooth adapter for full functionality.
- Change maps
- Monitor live engine data
- Record logs
- Manage fault codes
- Update JB4 firmware
- Smartphone integration
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Smart phone integration for your JB4 performance tuner to change maps, monitor live engine data, record logs, manage fault codes, update JB4 firmware, and much more! Note the JB4 PRO free app requires the JB4 PRO BT adapter and is not compatible with the JB4 Mobile BT adapter.
Screenshots
Verdict
The clearest difference is price: JB4 PRO at Free against JB4 Mobile's $27.99. JB4 PRO also leads on rating (4.4 vs 3.8) and update cadence (fortnightly vs every 3 months). JB4 Mobile's advantage is ratings volume (239 vs 14) and chart position (#4 vs unranked). On review sentiment, ads, in-app purchases and monetization model there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
JB4 PRO is free to download; JB4 Mobile costs $27.99 up front. Neither carries in-app purchases, so what you see is what you pay.
JB4 PRO holds the better App Store score, 4.4 against 3.8. That said, the two scores are not equally well evidenced: JB4 Mobile has 239 ratings behind it against 14, so its average is the more settled of the two. Written reviews complicate that: 52% of JB4 Mobile's written reviews are positive against 50% of JB4 PRO's, so the app with the better star average is not the one people write more warmly about.
JB4 Mobile ships an update every 3 months, JB4 PRO fortnightly. The most recent releases landed on September 23, 2026 and September 13, 2026 respectively.
| Parameter | JB4 Mobile | JB4 PRO |
|---|---|---|
| Price | $27.99 | Free — better |
| Rating | 3.8 (239 ratings) | 4.4 (14 ratings) — better |
| Positive reviews | 52.4% of reviews — better | 50.0% of reviews |
| Number of ratings | 239 — better | 14 |
| Update frequency | Every 3 months | Fortnightly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Best chart rank | #4 — better | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 15.1 — better | 16.0 |
| Further details — not scored | ||
| Size | 24 MB | 22 MB |
| Age rating | 4+ | 4+ |
| Developer | Dmac Mobile Developments, LLC | Burger Motorsports, Inc |
Customer experience
JB4 Mobile
JB4 PRO
Bugs and requests
JB4 Mobile
Reported bugs
5 issues- App crashes
- Can't connect to server
- Mirrored/inverted display
- Compatibility issues with new iOS versions
- Trouble logging in
Requested features
5 requests- Add CarPlay support
- Allow customizing map names
- Add more gauge styling options
- Improve UI and layout
- Integrate with Apple Carplay
JB4 PRO
Not enough reviews yet to summarise bugs or requests.
In-app purchases
JB4 Mobile
No in-app purchases
JB4 PRO
No in-app purchases
