RFECU Performance 2.0 vs QSS Stand Alone
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
RFECU Performance 2.0
Connects to your motorcycle's engine computer via Bluetooth to adjust fuel injection, ignition timing, and O2 sensor range. Offers quick mode switching, displays and clears diagnostic trouble codes, and provides real-time engine parameter monitoring with historical data analysis.
- Bluetooth engine connection
- Fuel injection adjustment
- Ignition timing control
- O2 sensor range settings
- Quick mode switching
- Diagnostic trouble code display and clearing
- Real-time engine parameter monitoring
- Historical data analysis
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透過藍芽連接器與噴射機車電腦做溝通, 可以達到以下功能： 1. 電腦調整: - 噴油: -100% ~ +100% - 點火: -30 degCRK ~ +60 degCRK - O2範圍: 可依照油門開度及轉速設定O2運轉於開/閉迴路 - 可變進/排氣閥: 可依照油門開度及轉速設定可變進/排氣閥門運轉於開/閉迴路 2. 快速模式: - 一鍵可快速切換至不同模式, 包含噴油, 點火, O2, 可變進/排氣一鍵快速切換. 3. 故障碼 - 故障碼顯示, 故障內容及排除指示, 故障碼清除 4. 引擎參數顯示及紀錄分析 - 可同時顯示超過60幾個引擎參數內容 - 可繪製成曲線圖顯示參數變化 - 可錄製下所有60幾個參數事後調出檔案進行曲線圖分析 5. 原廠電腦亦支援上述 故障碼 及 引擎參數顯示及紀錄分析 功能
QSS Stand Alone
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QSS Stand Alone APP是aRacer提供賽車快排監控調整之平台, 提供完整的數據監控、功能切換......等等。 QSS Stand Alone 內建強大功能包含: 1.無須拉動離合器即可進檔 2.高精確控制切斷點火訊號 3.雙向式(推與拉)感壓式感應器 4.快排作動時間...等精細設定
Screenshots
Verdict
The clearest difference is price: QSS Stand Alone at Free against RFECU Performance 2.0's $26.99. QSS Stand Alone also leads on iOS requirement (13.0 vs 15.6). On update cadence, 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
QSS Stand Alone is free to download; RFECU Performance 2.0 costs $26.99 up front. Neither carries in-app purchases, so what you see is what you pay.
RFECU Performance 2.0 ships an update every 6 weeks, QSS Stand Alone monthly. The most recent releases landed on October 2, 2026 and October 10, 2026 respectively.
| Parameter | RFECU Performance 2.0 | QSS Stand Alone |
|---|---|---|
| Price | $26.99 | Free — better |
| Positive reviews | 60.0% of reviews | — |
| Update frequency | Every 6 weeks | Monthly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 15.6 | 13.0 — better |
| Further details — not scored | ||
| Size | 14 MB | 134 MB |
| Age rating | 4+ | 4+ |
| Developer | Release Force Limited Company | ARACER SPEEDTEK INC. |
In-app purchases
RFECU Performance 2.0
No in-app purchases
QSS Stand Alone
No in-app purchases
Questions
Is RFECU Performance 2.0 free?
Is QSS Stand Alone free?
Do RFECU Performance 2.0 or QSS Stand Alone have ads?
Which is updated more often, RFECU Performance 2.0 or QSS Stand Alone?
Other comparisons
