# 大人のやる気ペン vs 試験対策AI

The clearest difference is update cadence: 試験対策AI at every 11 days against 大人のやる気ペン's every 3 weeks. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. 大人のやる気ペン sells 10 one-off in-app purchases and 試験対策AI sells 2 in-app purchases, starting at $9.99 per month. Whichever you choose, the download price is not the number that matters.

大人のやる気ペン ships an update every 3 weeks, 試験対策AI every 11 days. The most recent releases landed on November 4, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | 大人のやる気ペン | 試験対策AI |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 9.3% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 11 days** |
| Size | 984 MB | 83 MB |
| Requires iOS | 16.0 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 12+ |
| Developer | [KOKUYO CO., LTD.](https://appshunter.io/developer/1068141364) | [Katsuyuki Hayashi](https://appshunter.io/developer/1597263179) |

## What reviewers say

### 大人のやる気ペン

[App page](https://appshunter.io/ios/app/id6737018651)

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 人工衛星　グレー | $2.99 | one-time |
| 勇者の装備 金 | $2.99 | one-time |
| ニンジン 橙 | $2.99 | one-time |
| 勇者の冠 金 | $2.99 | one-time |
| 宇宙ヘルメット グレー | $2.99 | one-time |
| ウサギの耳 白 | $2.99 | one-time |
| 名誉のキズ 銀 | $2.99 | one-time |
| 宇宙服ポット 白 | $2.99 | one-time |
| セーターポット 白 | $2.99 | one-time |
| 勇者の鎧ポット グレー | $2.99 | one-time |


### 試験対策AI

[App page](https://appshunter.io/ios/app/ai/id6816610390)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Basic | $9.99 | per month |
| Basic | $59.99 | per year |


## Frequently asked questions

### Is 大人のやる気ペン free?

大人のやる気ペン is free to download, with in-app purchases available.

### Is 試験対策AI free?

試験対策AI is free to download, with in-app purchases available.

### Do 大人のやる気ペン or 試験対策AI have ads?

Neither 大人のやる気ペン nor 試験対策AI shows ads.

### Which is updated more often, 大人のやる気ペン or 試験対策AI?

大人のやる気ペン ships an update every 3 weeks, and 試験対策AI every 11 days. Most recently, 大人のやる気ペン was updated on November 4, 2026 and 試験対策AI on October 31, 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.*