JB4 Mobile vs dragy Connect
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.
dragy Connect
This GPS-based performance meter allows users to track various acceleration metrics like 0-60mph and 1/4 mile times. It enables sharing performance data on leaderboards and videos with real-time overlays. A dedicated hardware device is required for testing.
- Track 0-60mph, 1/4 mile, and more
- GPS-based performance measurement
- Share results on leaderboards
- Create videos with real-time data
- Requires dedicated dragy device
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Ready to test your 1/4 mile performance with dragy? Dragy is a GPS based performance meter. Track your 0-60mph, 60-130mph, 0-130mph, 1/4 mile, 1/2 mile performance. Share the performance on the leaderboard. Share videos with real-time speedometer and performance report. ***Note: Dragy DEVICE IS REQUIRED for performance testing. Dragy is available on www.goDragy.com
Screenshots
Verdict
The clearest difference is price: dragy Connect at Free against JB4 Mobile's $27.99. dragy Connect also leads on update cadence (monthly vs every 3 months) and iOS requirement (12.0 vs 15.1). JB4 Mobile's advantage is rating (3.8 vs 2.5) and review sentiment (52% vs 23%). On ads, in-app purchases, monetization model and device support 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
dragy Connect 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 Mobile holds the better App Store score, 3.8 against 2.5. That said, the two scores are not equally well evidenced: JB4 Mobile has 239 ratings behind it against 8, so its average is the more settled of the two. Written reviews point the same way: 52% of JB4 Mobile's written reviews are positive against 23% of dragy Connect's.
JB4 Mobile ships an update every 3 months, dragy Connect monthly. The most recent releases landed on September 23, 2026 and September 24, 2026 respectively.
| Parameter | JB4 Mobile | dragy Connect |
|---|---|---|
| Price | $27.99 | Free — better |
| Rating | 3.8 (239 ratings) — better | 2.5 (8 ratings) |
| Positive reviews | 52.4% of reviews — better | 23.1% of reviews |
| Number of ratings | 239 — better | 8 |
| Update frequency | Every 3 months | Monthly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Best chart rank | #3 — better | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 15.1 | 12.0 — better |
| Further details — not scored | ||
| Size | 24 MB | 71 MB |
| Age rating | 4+ | 4+ |
| Developer | Dmac Mobile Developments, LLC | Harbin Qirui Technology Company With Limited Liability. |
Customer experience
JB4 Mobile
dragy Connect
User reviews
JB4 Mobile
From 239 App Store ratingsWhat we love
- 🚀 Great app and a must have with the JB4
- 🔒 Robust security features
- 👍 Awesome data logging
- 👍 Incredible Support
- 👍 Works as expected
Room to improve
- 🐛 Doesn't work properly, screen upside down and backwards
- 🐛 Stopped working after update
- 🐛 Bluetooth connection issues
- 🐛 Gauges freezing
- 🐛 Screen turns off
dragy Connect
From 8 App Store ratingsWhat we love
- 🚀 Accurate measurements
- 👍 Easy to use
- 🚀 Compact and lightweight device
- 🚀 Great performance tracking tool
Room to improve
- 🐛 Frequent app crashes
- 🐛 Connectivity issues (no internet connection)
- 🐛 Leaderboard and data upload problems
- 🔇 Annoying voice announcements
- 🔋 Inconsistent satellite connection
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
dragy Connect
Reported bugs
5 issues- App crashes when trying to access leaderboards
- Inability to log in or create an account
- Inconsistent gradient measurements
- Video recording feature not working properly
- Saved data/times disappearing or not syncing
Requested features
6 requests- Add search and filtering options for leaderboards
- Improve video recording and export functionality
- Implement support for multiple vehicles
- Add option to disable voice announcements
- Provide data export capabilities (CSV, etc.)
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- Improve app stability and performance
In-app purchases
JB4 Mobile
No in-app purchases
dragy Connect
No in-app purchases
