# 学校で教えない教養&常識を徹底的に鍛える知恵サプリアプリ vs おてつだいスタンプ

The clearest difference is update cadence: おてつだいスタンプ at every 2 days against 学校で教えない教養&常識を徹底的に鍛える知恵サプリアプリ's every 9 months. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. 学校で教えない教養&常識を徹底的に鍛える知恵サプリアプリ sells 1 one-off in-app purchase and おてつだいスタンプ sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

学校で教えない教養&常識を徹底的に鍛える知恵サプリアプリ ships an update every 9 months, おてつだいスタンプ every 2 days. The most recent releases landed on October 27, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | 学校で教えない教養&常識を徹底的に鍛える知恵サプリアプリ | おてつだいスタンプ |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 9 months | **Every 2 days** |
| Size | 16 MB | 110 MB |
| Requires iOS | 16.4 | 16.4 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Yuto Inagaki](https://appshunter.io/developer/1733484400) | [RUOK LLC](https://appshunter.io/developer/1867680933) |

## What reviewers say

### 学校で教えない教養&常識を徹底的に鍛える知恵サプリアプリ

[App page](https://appshunter.io/ios/app/and/id6478607983)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| プレミアム会員 | $2.99 | one-time |


### おてつだいスタンプ

[App page](https://appshunter.io/ios/app/id6759640151)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Pack | $0.49 | one-time |


## Frequently asked questions

### Is 学校で教えない教養&常識を徹底的に鍛える知恵サプリアプリ free?

学校で教えない教養&常識を徹底的に鍛える知恵サプリアプリ is free to download, with in-app purchases available.

### Is おてつだいスタンプ free?

おてつだいスタンプ is free to download, with in-app purchases available.

### Do 学校で教えない教養&常識を徹底的に鍛える知恵サプリアプリ or おてつだいスタンプ have ads?

Neither 学校で教えない教養&常識を徹底的に鍛える知恵サプリアプリ nor おてつだいスタンプ shows ads.

### Which is updated more often, 学校で教えない教養&常識を徹底的に鍛える知恵サプリアプリ or おてつだいスタンプ?

学校で教えない教養&常識を徹底的に鍛える知恵サプリアプリ ships an update every 9 months, and おてつだいスタンプ every 2 days. Most recently, 学校で教えない教養&常識を徹底的に鍛える知恵サプリアプリ was updated on October 27, 2026 and おてつだいスタンプ on October 24, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*