# OzCharge BM12 vs BM12V

The clearest difference is review sentiment: OzCharge BM12 at 100% against BM12V's 23%. BM12V's advantage is update cadence (every 3 weeks vs every 2 months). On price, ads, in-app purchases and monetization model there is nothing between them.

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

OzCharge BM12 ships an update every 2 months, BM12V every 3 weeks. The most recent releases landed on November 2, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | OzCharge BM12 | BM12V |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | **100.0% of reviews** | 23.1% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 3 weeks** |
| Monetization | Free | Free |
| Size | 8 MB | 11 MB |
| Requires iOS | 15.6 | 15.6 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Autech Australia Pty. Ltd.](https://appshunter.io/developer/1447576897) | [俊华 邹](https://appshunter.io/developer/1276442287) |

## What reviewers say

### OzCharge BM12

[App page](https://appshunter.io/ios/app/ozcharge-bm12/id1447576898)

Monitor your car battery's real-time voltage and test its cranking and charging systems. View all battery data directly on your mobile device via Bluetooth connection.

**Highlights:** Real-time voltage monitoring, Cranking system testing, Charging system testing, Bluetooth data transfer, Mobile device display

**Features:** macOS Compatibility

**In-app purchases:** none


### BM12V

[App page](https://appshunter.io/ios/app/bm12v/id1477779532)

Monitor your vehicle's battery in real-time via Bluetooth. Test cranking and charging systems to ensure your battery is in optimal condition. View all data directly on your mobile device.

**Highlights:** Real-time voltage monitoring, Bluetooth connectivity, Cranking system testing, Charging system testing, Mobile data display

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is OzCharge BM12 free?

OzCharge BM12 is free to download, with no in-app purchases.

### Is BM12V free?

BM12V is free to download, with no in-app purchases.

### Do OzCharge BM12 or BM12V have ads?

Neither OzCharge BM12 nor BM12V shows ads.

### Which is updated more often, OzCharge BM12 or BM12V?

OzCharge BM12 ships an update every 2 months, and BM12V every 3 weeks. Most recently, OzCharge BM12 was updated on November 2, 2026 and BM12V on October 24, 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.*