dragy Connect vs JB4 PRO
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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
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 rating: JB4 PRO at 4.4 against dragy Connect's 2.5. JB4 PRO also leads on review sentiment (50% vs 23%) and update cadence (fortnightly vs monthly). dragy Connect's advantage is iOS requirement (12.0 vs 16.0). On price, ratings volume, ads and in-app purchases 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
JB4 PRO holds the better App Store score, 4.4 against 2.5. Both are backed by a comparable volume of ratings — 8 and 14 respectively. Written reviews point the same way: 23% of dragy Connect's written reviews are positive against 50% of JB4 PRO's.
dragy Connect ships an update monthly, JB4 PRO fortnightly. The most recent releases landed on September 24, 2026 and September 13, 2026 respectively.
| Parameter | dragy Connect | JB4 PRO |
|---|---|---|
| Price | Free | Free |
| Rating | 2.5 (8 ratings) | 4.4 (14 ratings) — better |
| Positive reviews | 23.1% of reviews | 50.0% of reviews — better |
| Number of ratings | 8 | 14 — better |
| Update frequency | Monthly | Fortnightly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPod | iPhone, iPad |
| Requires iOS | 12.0 — better | 16.0 |
| Further details — not scored | ||
| Size | 71 MB | 22 MB |
| Age rating | 4+ | 4+ |
| Developer | Harbin Qirui Technology Company With Limited Liability. | Burger Motorsports, Inc |
Customer experience
dragy Connect
JB4 PRO
Bugs and requests
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
JB4 PRO
Not enough reviews yet to summarise bugs or requests.
In-app purchases
dragy Connect
No in-app purchases
JB4 PRO
No in-app purchases
