# OzCharge BM12 vs Predator Bluetooth

The clearest difference is review sentiment: OzCharge BM12 at 100% against Predator Bluetooth's 0%. 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.

Both ship on a similar rhythm, roughly every 6 weeks. The most recent releases landed on September 29, 2026 and September 27, 2026 respectively.

## The numbers

| Metric | OzCharge BM12 | Predator Bluetooth |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | **100.0% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 weeks | Every 6 weeks |
| Monetization | Free | Free |
| Size | 9 MB | 66 MB |
| Requires iOS | 12.0 | 12.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Autech Australia Pty. Ltd.](https://appshunter.io/developer/1447576897) | [R&J Batteries PTY LTD](https://appshunter.io/developer/1527962797) |

## 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


### Predator Bluetooth

[App page](https://appshunter.io/ios/app/predator-bluetooth/id6463625609)

Connect to Bluetooth batteries to view real-time data and status. Customize battery names and automatically detect nearby Bluetooth IDs for easy connection. Stay informed about your battery's performance.

**Highlights:** Automatic Bluetooth ID detection, Manual Bluetooth connection, Customizable battery names, Real-time battery status display, View specific battery data

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is OzCharge BM12 free?

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

### Is Predator Bluetooth free?

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

### Do OzCharge BM12 or Predator Bluetooth have ads?

Neither OzCharge BM12 nor Predator Bluetooth shows ads.

### Which is updated more often, OzCharge BM12 or Predator Bluetooth?

OzCharge BM12 ships an update every 6 weeks, and Predator Bluetooth every 6 weeks. Most recently, OzCharge BM12 was updated on September 29, 2026 and Predator Bluetooth on September 27, 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.*