# 人間バッテリー vs CoTRAIN

The clearest difference is device support: 人間バッテリー at 2 against CoTRAIN's —. CoTRAIN's advantage is iOS requirement (15.1 vs 26.0). On price and in-app purchases there is nothing between them.

Both are free to download. 人間バッテリー sells 4 one-off in-app purchases and CoTRAIN sells 2 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.

## The numbers

| Metric | 人間バッテリー | CoTRAIN |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | — |
| Update frequency | Every 4 weeks | — |
| Size | 15 MB | 90 MB |
| Requires iOS | 26.0 | **15.1** |
| Devices | **iPhone, iPad** | — |
| Age rating | 4+ | 4+ |
| Developer | [kakeru takeda](https://appshunter.io/developer/1814024829) | [Kazuki Masuda](https://appshunter.io/developer/1871152635) |

## What reviewers say

### 人間バッテリー

[App page](https://appshunter.io/ios/app/id6745805102)

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| ちいさなカンパ | $0.99 | one-time |
| うれしいカンパ | $1.99 | one-time |
| しっかりカンパ | $3.99 | one-time |
| 全力カンパ | $6.99 | one-time |


### CoTRAIN

[App page](https://appshunter.io/ios/app/cotrain-ai/id6759483583)

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| CoTrain Pro | $1.99 | per month |
| CoTrain Pro 年間プラン | $19.99 | per year |


## Frequently asked questions

### Is 人間バッテリー free?

人間バッテリー is free to download, with in-app purchases available.

### Is CoTRAIN free?

CoTRAIN is free to download, with in-app purchases available.

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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.*