BM6 vs PowerMon X
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
BM6
Monitor your car's battery in real-time via Bluetooth. This app tests starting and charging systems, records engine start/stop times, and displays all data on your mobile device for easy management of your vehicle's battery power.
- Real-time battery voltage monitoring
- Starting system voltage test
- Charging system voltage test
- Records engine start/stop times
- Bluetooth data display
- Vehicle battery power management
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Battery monitor 6 is an application of automobile battery. It can let people know the voltage of automobile battery in real time. It helps users fully understand the battery by testing the starting and charging system voltage. It can accurately record the time of car starting and stopping. All data can be displayed on the mobile phone through Bluetooth. Easy management of vehicle battery power
PowerMon X
Monitor battery levels and performance of compatible devices via Bluetooth. View redesigned log data charts and access improved screens. Requires a physical PowerMon device.
- Redesigned log data charts
- Improved screens
- Compatibility with newest devices
- Compatibility with new firmware
- Bluetooth monitoring
- Requires physical device
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The PowerMon X app adds redesigned log data charts, improved screens, compatibility with the newest mobile devices and operating systems and compatibility with a new generation of devices and firmware versions. The application requires a physical PowerMon device which can be purchased from our store: www.thornwave.com. Please visit us online! If you'd like to test before you buy, click on this link after you install the app and it will connect you to a WiFi demo device located in our lab. https://applinks.thornwave.com/?n=DemoUnit&s=36129e86da98dda9&h=40&c=HzotUykUSvP/Ox0xdUpYVw%3D%3D&k=//////////////////////////////////////////8%3D
Screenshots
Verdict
The clearest difference is rating: PowerMon X at 4.0 against BM6's 3.3. PowerMon X also leads on review sentiment (67% vs 46%). BM6's advantage is ratings volume (18 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.
PowerMon X holds the better App Store score, 4.0 against 3.3. Both are backed by a comparable volume of ratings — 18 and 5 respectively. Written reviews point the same way: 46% of BM6's written reviews are positive against 67% of PowerMon X's.
BM6 ships an update every 5 weeks, PowerMon X every 3 weeks. The most recent releases landed on October 21, 2026 and September 29, 2026 respectively.
| Parameter | BM6 | PowerMon X |
|---|---|---|
| Price | Free | Free |
| Rating | 3.3 (18 ratings) | 4.0 (5 ratings) — better |
| Positive reviews | 45.8% of reviews | 66.7% of reviews — better |
| Number of ratings | 18 — better | 5 |
| Update frequency | Every 5 weeks | Every 3 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPod, Apple Watch | iPhone, iPad, iPod |
| Requires iOS | 15.6 | 15.6 |
| Further details — not scored | ||
| Size | 64 MB | 10 MB |
| Age rating | 4+ | 4+ |
| Developer | Shenzhen Leagend Optoelectronics Co., Ltd. | Thornwave Labs Inc |
Customer experience
BM6
PowerMon X
In-app purchases
BM6
No in-app purchases
PowerMon X
No in-app purchases
