# BM6 vs Kbattery

The clearest difference is review sentiment: BM6 at 46% against Kbattery's 0%. BM6 also leads on rating (3.2 vs 3.0) and ratings volume (17 vs 4). Kbattery's advantage is iOS requirement (13.0 vs 15.6). On price, update cadence, ads and in-app purchases there is nothing between them.

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

BM6 holds the better App Store score, 3.2 against 3.0. Both are backed by a comparable volume of ratings — 17 and 4 respectively. Written reviews point the same way: 46% of BM6's written reviews are positive against 0% of Kbattery's.

BM6 ships an update every 5 weeks, Kbattery every 3 weeks. The most recent releases landed on September 22, 2026 and June 4, 2026 respectively.

## The numbers

| Metric | BM6 | Kbattery |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.2 (17 ratings)](https://appshunter.io/ios/app/bm6/id1561912036/reviews)** | [3.0 (4 ratings)](https://appshunter.io/ios/app/kbattery/id1587655995/reviews) |
| Number of ratings | **17** | 4 |
| Positive reviews | **45.8% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 weeks | **Every 3 weeks** |
| Monetization | Free | Free |
| Size | 64 MB | 9 MB |
| Requires iOS | 15.6 | **13.0** |
| 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


### Kbattery

[App page](https://appshunter.io/ios/app/kbattery/id1587655995)

This app connects to a diagnostic instrument to accurately measure battery health for vehicles. It tests startup and charging systems, monitors voltage, and provides early warnings for car maintenance. Supports various battery types and international standards.

**Highlights:** Advanced conductivity testing, Vehicle battery health measurement, Startup and charging system tests, Real-time voltage monitoring, Supports multiple battery types, International battery standard compatibility, One-click test report generation

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is BM6 free?

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

### Is Kbattery free?

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

### Which has better reviews, BM6 or Kbattery?

BM6 is rated higher. BM6 averages 3.2 out of 5 from 17 ratings, while Kbattery averages 3.0 from 4 ratings.

### Do BM6 or Kbattery have ads?

Neither BM6 nor Kbattery shows ads.

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

BM6 ships an update every 5 weeks, and Kbattery every 3 weeks. Most recently, BM6 was updated on September 22, 2026 and Kbattery on June 4, 2026.

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