# BatteryDisplay vs Battery Master 12V

The clearest difference is review sentiment: BatteryDisplay at 100% against Battery Master 12V's 0%. BatteryDisplay also leads on rating (4.5 vs 3.4) and iOS requirement (13.0 vs 15.6). On price, ratings volume, 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.

BatteryDisplay holds the better App Store score, 4.5 against 3.4. Both are backed by a comparable volume of ratings — 2 and 5 respectively. Written reviews point the same way: 100% of BatteryDisplay's written reviews are positive against 0% of Battery Master 12V's.

Both ship on a similar rhythm, roughly every 6 weeks. The most recent releases landed on October 24, 2026 and October 17, 2026 respectively.

## The numbers

| Metric | BatteryDisplay | Battery Master 12V |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (2 ratings)](https://appshunter.io/ios/app/batterydisplay/id1476044653/reviews)** | [3.4 (5 ratings)](https://appshunter.io/ios/app/battery-master-12v/id1480710112/reviews) |
| Number of ratings | 2 | **5** |
| 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 | 12 MB | 39 MB |
| Requires iOS | **13.0** | 15.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Anthony Scappaticci](https://appshunter.io/developer/1242833488) | [Shenzhen Leagend Optoelectronics Co., Ltd.](https://appshunter.io/developer/6798210621) |

## What reviewers say

### BatteryDisplay

[App page](https://appshunter.io/ios/app/batterydisplay/id1476044653)

Monitor the health of your KS2 Lithium Batteries through a Bluetooth interface. This app allows you to view battery status and generate reports for analysis by KS2 Corp.

**Highlights:** Bluetooth battery monitoring, Battery health status, Report generation for KS2 Corp, Interface with KS2 Lithium Batteries

**Features:** macOS Compatibility

**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 BatteryDisplay free?

BatteryDisplay 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, BatteryDisplay or Battery Master 12V?

BatteryDisplay is rated higher. BatteryDisplay averages 4.5 out of 5 from 2 ratings, while Battery Master 12V averages 3.4 from 5 ratings.

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

Neither BatteryDisplay nor Battery Master 12V shows ads.

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

BatteryDisplay ships an update every 6 weeks, and Battery Master 12V every 6 weeks. Most recently, BatteryDisplay was updated on October 24, 2026 and Battery Master 12V on October 17, 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.*