# BM6 vs BKmonitor

The clearest difference is update cadence: BKmonitor at every 2 weeks against BM6's every 5 weeks. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

BM6 ships an update every 5 weeks, BKmonitor every 2 weeks. The most recent releases landed on September 22, 2026 and September 14, 2026 respectively.

## The numbers

| Metric | BM6 | BKmonitor |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.2 (17 ratings)](https://appshunter.io/ios/app/bm6/id1561912036/reviews)** | — |
| Number of ratings | **17** | — |
| Positive reviews | 45.8% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 weeks | **Every 2 weeks** |
| Monetization | Free | — |
| Size | 64 MB | 8 MB |
| Requires iOS | 15.6 | **14.0** |
| Devices | iPhone, iPod, Apple Watch | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Shenzhen Leagend Optoelectronics Co., Ltd.](https://appshunter.io/developer/6798210621) | [祖策 谢](https://appshunter.io/developer/983519195) |

## What reviewers say

### BM6

[App page](https://appshunter.io/ios/app/bm6/id1561912036)

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.

**Highlights:** 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

**Features:** macOS Compatibility, Apple Watch app

**In-app purchases:** none


### BKmonitor

[App page](https://appshunter.io/ios/app/bkmonitor/id6502943237)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is BM6 free?

BM6 is free to download, with no in-app purchases.

### Is BKmonitor free?

BKmonitor is free to download, with no in-app purchases.

### Do BM6 or BKmonitor have ads?

Neither BM6 nor BKmonitor shows ads.

### Which is updated more often, BM6 or BKmonitor?

BM6 ships an update every 5 weeks, and BKmonitor every 2 weeks. Most recently, BM6 was updated on September 22, 2026 and BKmonitor on September 14, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*