# InterBattery vs EVS37

The clearest difference is update cadence: InterBattery at every 5 days against EVS37's fortnightly. InterBattery also leads on iOS requirement (13.0 vs 16.0). 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.

InterBattery ships an update every 5 days, EVS37 fortnightly. Both last shipped on September 23, 2026.

## The numbers

| Metric | InterBattery | EVS37 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 5 days** | Fortnightly |
| Size | 47 MB | 48 MB |
| Requires iOS | **13.0** | 16.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 17+ |
| Developer | [MICEHUB CO.,LTD](https://appshunter.io/developer/1465447351) | [JLAB COMPANY Co., Ltd.](https://appshunter.io/developer/1619246441) |

## What reviewers say

### InterBattery

[App page](https://appshunter.io/ios/app/interbattery/id6474230473)

**Features:** macOS Compatibility

**In-app purchases:** none


### EVS37

[App page](https://appshunter.io/ios/app/evs37/id6479245825)

**In-app purchases:** none


## Frequently asked questions

### Is InterBattery free?

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

### Is EVS37 free?

EVS37 is free to download, with no in-app purchases.

### Do InterBattery or EVS37 have ads?

Neither InterBattery nor EVS37 shows ads.

### Which is updated more often, InterBattery or EVS37?

InterBattery ships an update every 5 days, and EVS37 fortnightly. Most recently, InterBattery was updated on September 23, 2026 and EVS37 on September 23, 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.*