D vs JB4 PRO
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
D
Control your engine's performance with a connected tuner. Adjust boost levels for fuel efficiency or increased power, choosing from five distinct settings. Monitor real-time and peak boost pressure directly from your smartphone.
- Adjust engine boost levels
- 5 power settings (Valet, Stock, Sport, Sport+, Race)
- Monitor live boost pressure
- Monitor peak boost pressure
- Control engine performance
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*** Requires DINANTronics SPORT Performance Tuner Take full control of your engine's performance with the DINANTronics SPORT Tuner and this app. Turn down your boost for fuel savings or valet parking, or increase it to boost your engine's power output. The control panel allows the user to chose between 5 power settings - 1. Valet 2. Stock 3. Sport 4. Sport+ 5. Race Monitor live boost pressure and peak boost pressure using your phone. "Continued use of GPS running in the background can dramatically decrease battery life."
JB4 PRO
Integrate your JB4 performance tuner with your smartphone to adjust maps, view live engine data, record performance logs, and manage fault codes. This free application also allows for firmware updates for compatible JB4 systems.
- Map adjustment
- Live engine data monitoring
- Log recording
- Fault code management
- Firmware updates
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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! All JB4 systems sold from 2025+ use this new FREE app!
Screenshots
Verdict
The clearest difference is rating: JB4 PRO at 4.4 against D's 1.9. JB4 PRO also leads on review sentiment (50% vs 13%) and update cadence (every 2 weeks vs every 5 months). D's advantage is ratings volume (127 vs 15) and iOS requirement (11.0 vs 16.0). On price, 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
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 1.9. That said, the two scores are not equally well evidenced: D has 127 ratings behind it against 15, so its average is the more settled of the two. Written reviews point the same way: 13% of D's written reviews are positive against 50% of JB4 PRO's.
D ships an update every 5 months, JB4 PRO every 2 weeks. The most recent releases landed on November 2, 2026 and November 5, 2026 respectively.
| Parameter | D | JB4 PRO |
|---|---|---|
| Price | Free | Free |
| Rating | 1.9 (127 ratings) | 4.4 (15 ratings) — better |
| Positive reviews | 12.5% of reviews | 50.0% of reviews — better |
| Number of ratings | 127 — better | 15 |
| Update frequency | Every 5 months | Every 2 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 11.0 — better | 16.0 |
| Further details — not scored | ||
| Size | 68 MB | 22 MB |
| Age rating | 4+ | 4+ |
| Developer | Dinan Corp | Burger Motorsports, Inc |
Customer experience
D
JB4 PRO
In-app purchases
D
No in-app purchases
JB4 PRO
No in-app purchases
