Engine Performance Booster vs Jacfit Device
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Engine Performance Booster
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本設備是一款能控制燃油優化控制盒設定的調適工具軟件, 能方便的設定各種參數達到較佳的運行效果 This equipment is an adaptive tool software that can control the setting of fuel optimization control box, and can easily set various parameters to achieve the running effect
Jacfit Device
This application connects to specific devices to manage their firmware. It ensures your connected products are always running the latest software for optimal performance and a smooth user experience.
- Firmware updates
- Device management
- Performance optimization
- User experience enhancement
- Keep devices up to date
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Jacfit Device is an application designed for Jacfit devices. With this app, you can easily update the firmware of your Jacfit products to keep them always up to date, ensuring the best performance and user experience.
Screenshots
Verdict
The clearest difference is update cadence: Jacfit Device at weekly against Engine Performance Booster's every 10 months. Engine Performance Booster's advantage is iOS requirement (10.0 vs 15.6). On price, ads, in-app purchases 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Engine Performance Booster ships an update every 10 months, Jacfit Device weekly. The most recent releases landed on October 7, 2026 and October 3, 2026 respectively.
| Parameter | Engine Performance Booster | Jacfit Device |
|---|---|---|
| Price | Free | Free |
| Rating | — | 3.0 (2 ratings) — better |
| Positive reviews | — | 0.0% of reviews |
| Number of ratings | — | 2 — better |
| Update frequency | Every 10 months | Weekly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Free |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 10.0 — better | 15.6 |
| Further details — not scored | ||
| Size | 21 MB | 2 MB |
| Age rating | 4+ | 12+ |
| Developer | StarRiver Digital Design Co. Ltd. | JSPORTS TECHNOLOGY CO., LTD. |
In-app purchases
Engine Performance Booster
No in-app purchases
Jacfit Device
No in-app purchases
Questions
Is Engine Performance Booster free?
Is Jacfit Device free?
Do Engine Performance Booster or Jacfit Device have ads?
Which is updated more often, Engine Performance Booster or Jacfit Device?
Other comparisons
