# Battery Master 12V vs Battery Testing Master

The clearest difference is rating: Battery Testing Master at 4.7 against Battery Master 12V's 3.4. Battery Testing Master also leads on update cadence (every 5 days vs every 6 weeks) and ratings volume (19 vs 5). Battery Master 12V's advantage is in-app purchases (none vs 1) and ads (none vs shown). On price, review sentiment, device support and iOS requirement there is nothing between them.

Both are free to download. Battery Testing Master sells 1 one-off in-app purchase. Battery Master 12V asks for nothing beyond the download.

Battery Testing Master holds the better App Store score, 4.7 against 3.4. Both are backed by a comparable volume of ratings — 5 and 19 respectively. Written reviews split almost evenly too, at 0% and 0% positive.

Battery Master 12V ships an update every 6 weeks, Battery Testing Master every 5 days. The most recent releases landed on October 1, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | Battery Master 12V | Battery Testing Master |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.4 (5 ratings)](https://appshunter.io/ios/app/battery-master-12v/id1480710112/reviews) | **[4.7 (19 ratings)](https://appshunter.io/ios/app/battery-testing-master/id6502358441/reviews)** |
| Number of ratings | 5 | **19** |
| Positive reviews | 0.0% of reviews | 0.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 6 weeks | **Every 5 days** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 39 MB | 40 MB |
| Requires iOS | 15.6 | **14.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Shenzhen Leagend Optoelectronics Co., Ltd.](https://appshunter.io/developer/6798210621) | [Nguyen Ngoc Long](https://appshunter.io/developer/1652022123) |

## What reviewers say

### Battery Master 12V

[App page](https://appshunter.io/ios/app/battery-master-12v/id1480710112)

This tool detects and tests lead-acid batteries, assessing CCA and health. It calculates remaining battery life based on temperature and CCA data. Users can also test cranking and charging systems, with all results shareable and printable.

**Highlights:** Lead-acid battery detection, Test battery CCA and health, Calculate available use life, Test cranking system, Test charging system, Share and print test results

**Features:** macOS Compatibility

**In-app purchases:** none


### Battery Testing Master

[App page](https://appshunter.io/ios/app/battery-testing-master/id6502358441)

This application benchmarks the battery performance of mobile devices. It provides a comprehensive test for battery health, suitable for both new and used batteries on iOS devices.

**Highlights:** Battery benchmarking, Battery health testing, Mobile device optimization, iOS battery analysis

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove ads | $1.99 | one-time |


## Frequently asked questions

### Is Battery Master 12V free?

Battery Master 12V is free to download, with no in-app purchases.

### Is Battery Testing Master free?

Battery Testing Master is free to download, with in-app purchases available.

### Which has better reviews, Battery Master 12V or Battery Testing Master?

Battery Testing Master is rated higher. Battery Master 12V averages 3.4 out of 5 from 5 ratings, while Battery Testing Master averages 4.7 from 19 ratings.

### Do Battery Master 12V or Battery Testing Master have ads?

Battery Testing Master shows ads; Battery Master 12V does not.

### Which is updated more often, Battery Master 12V or Battery Testing Master?

Battery Master 12V ships an update every 6 weeks, and Battery Testing Master every 5 days. Most recently, Battery Master 12V was updated on October 1, 2026 and Battery Testing Master on October 13, 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.*