QRacing vs USANA642
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
QRacing
Analyze motorsports race data with lap timing, video recording, and data overlay. Compatible only with Qstarz GT BLE GPS devices, it offers detailed analytics for drag and circuit racing.
- Lap timing and plot chart analysis
- Video recording with data overlay
- Lap, Sector, and Split time delta comparison
- Auto detect global circuit tracks
- Drag modes by Speed, Distance, 1/4 mile
- Session data export to CSV
- Racer and Garage management
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QRacing is a Lap timing analytics application for motorsports in use with Qstarz GT devices. It provides diversified features to analyze race data, as well as record video on your phone and overlaying with logged data. Please note: Only Qstarz GT BLE GPS device owners will be able to use this app. The main features are as below: 1. Apply to Drag Race and Circuit Race 2. Lap timing and plot chart analysis 3. Video recording on your phone and sharing with data overlay 4. Lap, Sector, and Split time delta comparison 5. Auto detect global circuit tracks 6. Drag modes by Speed, Distance, 1/4 mile, or 0-Speed-0 7. Historical session in list and playback 8. Track Ranking 9. Session data export to CSV format 10. Racer and Garage management 11. Session backup and restore (Note: Backup doesn't contain videos) Languages: English, Japanese, German, and Traditional Chinese. Requirements: - Require iOS 12.0 or later - Suggest iPhone 8 or newer models - For use with Qstarz LT-8000GT / BL-1000GT / BL-818GT products
USANA642
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『USANA642系統是被直銷業認為最成功複製的系統』讓一般的上班族、學生、小老闆、創業者簡單學習的複製系統，人與人之間沒有距離，不受時間空間限制地輕鬆推薦朋友使用好的產品並分享USANARU將提供豐厚的獎勵金回櫃給我們。
Screenshots
Verdict
The clearest difference is iOS requirement: QRacing at 12.0 against USANA642's 15.1. On price, update cadence, 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.
QRacing ships an update every 3 weeks, USANA642 monthly. The most recent releases landed on November 2, 2026 and November 6, 2026 respectively.
| Parameter | QRacing | USANA642 |
|---|---|---|
| Price | Free | Free |
| Rating | 4.0 (4 ratings) — better | — |
| Positive reviews | 16.7% of reviews | — |
| Number of ratings | 4 — better | — |
| Update frequency | Every 3 weeks — better | Monthly |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 12.0 — better | 15.1 |
| Further details — not scored | ||
| Size | 138 MB | 37 MB |
| Age rating | 4+ | 4+ |
| Developer | Qstarz International Co., Ltd. | CHENG JIA WANG |
In-app purchases
QRacing
No in-app purchases
USANA642
No in-app purchases
