# BT1000 vs Battery Master 12V

The clearest difference is rating: BT1000 at 5.0 against Battery Master 12V's 3.4. Battery Master 12V's advantage is ratings volume (5 vs 1). On price, review sentiment, update cadence and ads there is nothing between them.

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

BT1000 holds the better App Store score, 5.0 against 3.4. That said, the two scores are not equally well evidenced: Battery Master 12V has 5 ratings behind it against 1, so its average is the more settled of the two. Written reviews split almost evenly too, at 0% and 0% positive.

BT1000 ships an update every 5 weeks, Battery Master 12V every 6 weeks. The most recent releases landed on September 8, 2026 and September 10, 2026 respectively.

## The numbers

| Metric | BT1000 | Battery Master 12V |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/bt1000/id1273595172/reviews)** | [3.4 (5 ratings)](https://appshunter.io/ios/app/battery-master-12v/id1480710112/reviews) |
| Number of ratings | 1 | **5** |
| Positive reviews | 0.0% of reviews | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 5 weeks** | Every 6 weeks |
| Monetization | Free | Free |
| Size | 6 MB | 39 MB |
| Requires iOS | 15.6 | 15.6 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [俊华 邹](https://appshunter.io/developer/1276442287) | [Shenzhen Leagend Optoelectronics Co., Ltd.](https://appshunter.io/developer/6798210621) |

## What reviewers say

### BT1000

[App page](https://appshunter.io/ios/app/bt1000/id1273595172)

This application allows users to control Bluetooth battery tester devices. It facilitates testing of battery condition, cranking, and charging systems, with the ability to save and share professional results.

**Highlights:** Bluetooth device control, Battery condition testing, Cranking system analysis, Charging system testing, Data saving, Result sharing

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### 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


## Frequently asked questions

### Is BT1000 free?

BT1000 is free to download, with no in-app purchases.

### Is Battery Master 12V free?

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

### Which has better reviews, BT1000 or Battery Master 12V?

BT1000 is rated higher. BT1000 averages 5.0 out of 5 from 1 ratings, while Battery Master 12V averages 3.4 from 5 ratings.

### Do BT1000 or Battery Master 12V have ads?

Neither BT1000 nor Battery Master 12V shows ads.

### Which is updated more often, BT1000 or Battery Master 12V?

BT1000 ships an update every 5 weeks, and Battery Master 12V every 6 weeks. Most recently, BT1000 was updated on September 8, 2026 and Battery Master 12V on September 10, 2026.

---

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