# Battery Checker vs CSM

The clearest difference is update cadence: CSM at weekly against Battery Checker's every 9 months. On price, ads, in-app purchases and device support there is nothing between them.

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

Battery Checker ships an update every 9 months, CSM weekly. The most recent releases landed on October 10, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | Battery Checker | CSM |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 9 months | **Weekly** |
| Size | 33 MB | 73 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [MaxCodex LLC](https://appshunter.io/developer/1712870604) | [Jose Acosta](https://appshunter.io/developer/1887869599) |

## What reviewers say

### Battery Checker

[App page](https://appshunter.io/ios/app/battery-checker/id6502196446)

**Features:** macOS Compatibility

**In-app purchases:** none


### CSM

[App page](https://appshunter.io/ios/app/csm/id6761118998)

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

**In-app purchases:** none


## Frequently asked questions

### Is Battery Checker free?

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

### Is CSM free?

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

### Do Battery Checker or CSM have ads?

Neither Battery Checker nor CSM shows ads.

### Which is updated more often, Battery Checker or CSM?

Battery Checker ships an update every 9 months, and CSM weekly. Most recently, Battery Checker was updated on October 10, 2026 and CSM on October 9, 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.*