QMWHEEL vs Key
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
QMWHEEL
This application connects to a balanced car via Bluetooth to display real-time vehicle data. Monitor power, speed, and current mileage directly from your device.
- Bluetooth connectivity
- Real-time power display
- Speed monitoring
- Mileage tracking
- Vehicle state display
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1.The QMWHEEL APP for balancing vehicle development App. 2.Through a Bluetooth connection to the QMWHEEL balanced car, the App can display power, speed,current mileage, and other states.
Key
This utility app allows users to remotely control and connect to devices, facilitating data transmission and collection. It enables over-the-air upgrades and social sharing, while also displaying meter speeds and reading device information directly from a mobile phone.
- Remote control and connection
- Data transmission and collection
- Over-the-air (OTA) upgrades
- Social sharing capabilities
- Meter speed display
- Device information reading
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1. Remote control and connection 2. Data transmission, collection, OTA upgrade, social sharing 3. The mobile phone APP realizes the display of the meter speed 4. Read device information
Screenshots
Verdict
The clearest difference is rating: Key at 4.0 against QMWHEEL's 2.7. QMWHEEL's advantage is review sentiment (11% vs 0%) and ratings volume (15 vs 5). 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.
Key holds the better App Store score, 4.0 against 2.7. Both are backed by a comparable volume of ratings — 15 and 5 respectively. Written reviews complicate that: 11% of QMWHEEL's written reviews are positive against 0% of Key's, so the app with the better star average is not the one people write more warmly about.
QMWHEEL ships an update every 4 months, Key every 6 months. The most recent releases landed on October 4, 2026 and October 9, 2026 respectively.
| Parameter | QMWHEEL | Key |
|---|---|---|
| Price | Free | Free |
| Rating | 2.7 (15 ratings) | 4.0 (5 ratings) — better |
| Positive reviews | 11.1% of reviews — better | 0.0% of reviews |
| Number of ratings | 15 — better | 5 |
| Update frequency | Every 4 months — better | Every 6 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPod | iPhone, iPod |
| Requires iOS | 10.0 — better | 13.0 |
| Further details — not scored | ||
| Size | 64 MB | 266 MB |
| Age rating | 17+ | 4+ |
| Developer | Shenzhen LingDong Intelligent Technologies CO., LTD. | Tianjin Key-Disp Technology Co.,Ltd |
Customer experience
QMWHEEL
Key
In-app purchases
QMWHEEL
No in-app purchases
Key
No in-app purchases
