# ANCEL BM300 Pro vs BKmonitor

The clearest difference is update cadence: BKmonitor at every 2 weeks against ANCEL BM300 Pro's monthly. 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.

ANCEL BM300 Pro ships an update monthly, BKmonitor every 2 weeks. The most recent releases landed on September 18, 2026 and September 14, 2026 respectively.

## The numbers

| Metric | ANCEL BM300 Pro | BKmonitor |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.8 (21 ratings)](https://appshunter.io/ios/app/ancel-bm300-pro/id6476840644/reviews)** | — |
| Number of ratings | **21** | — |
| Positive reviews | 36.8% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Monthly | **Every 2 weeks** |
| Monetization | Free | — |
| Size | 68 MB | 8 MB |
| Requires iOS | 15.6 | **14.0** |
| Devices | iPhone, iPod, Apple Watch | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [OBDSPACE TECHNOLOGY CO.,LTD](https://appshunter.io/developer/1434956144) | [祖策 谢](https://appshunter.io/developer/983519195) |

## What reviewers say

### ANCEL BM300 Pro

[App page](https://appshunter.io/ios/app/ancel-bm300-pro/id6476840644)

This app monitors 6V, 12V, and 24V batteries, allowing simultaneous tracking of up to four. It provides insights into battery health by testing startup and charging system voltage, and accurately records vehicle start and stop times. All data is accessible on your phone via Bluetooth for easy vehicle battery management.

**Highlights:** Monitors 6V, 12V, 24V batteries, Simultaneous monitoring of four batteries, Tests startup and charging system voltage, Records vehicle start/stop times, Bluetooth data display on phone, Vehicle battery power management

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**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 ANCEL BM300 Pro free?

ANCEL BM300 Pro is free to download, with no in-app purchases.

### Is BKmonitor free?

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

### Do ANCEL BM300 Pro or BKmonitor have ads?

Neither ANCEL BM300 Pro nor BKmonitor shows ads.

### Which is updated more often, ANCEL BM300 Pro or BKmonitor?

ANCEL BM300 Pro ships an update monthly, and BKmonitor every 2 weeks. Most recently, ANCEL BM300 Pro was updated on September 18, 2026 and BKmonitor on September 14, 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.*