# chaKra 公式アプリ vs やる気メイカー

The clearest difference is in-app purchases: chaKra 公式アプリ at none against やる気メイカー's 2. chaKra 公式アプリ also leads on ads (none vs shown) and iOS requirement (12.0 vs 14.0). やる気メイカー's advantage is update cadence (every 8 months vs every 40 months). On price and device support there is nothing between them.

Both are free to download. やる気メイカー sells 2 in-app purchases, starting at $1.49 per month. chaKra 公式アプリ asks for nothing beyond the download.

chaKra 公式アプリ ships an update every 40 months, やる気メイカー every 8 months. The most recent releases landed on November 2, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | chaKra 公式アプリ | やる気メイカー |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 40 months | **Every 8 months** |
| Size | 15 MB | 67 MB |
| Requires iOS | **12.0** | 14.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [MIKA OSONOE](https://appshunter.io/developer/1436814575) | [yasuhiro kojima](https://appshunter.io/developer/1244729145) |

## What reviewers say

### chaKra 公式アプリ

[App page](https://appshunter.io/ios/app/chakra/id1436814576)

**In-app purchases:** none


### やる気メイカー

[App page](https://appshunter.io/ios/app/id1630794379)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| プレミアムプラン（1ヶ月） | $1.49 | per month |
| プレミアムプラン（1年間） | $15.99 | per year |


## Frequently asked questions

### Is chaKra 公式アプリ free?

chaKra 公式アプリ is free to download, with no in-app purchases.

### Is やる気メイカー free?

やる気メイカー is free to download, with in-app purchases available.

### Do chaKra 公式アプリ or やる気メイカー have ads?

やる気メイカー shows ads; chaKra 公式アプリ does not.

### Which is updated more often, chaKra 公式アプリ or やる気メイカー?

chaKra 公式アプリ ships an update every 40 months, and やる気メイカー every 8 months. Most recently, chaKra 公式アプリ was updated on November 2, 2026 and やる気メイカー on November 3, 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.*