# 小6漢字ドリル vs How Math Works

The clearest difference is price: How Math Works at Free against 小6漢字ドリル's $1.99. How Math Works also leads on update cadence (every 6 days vs fortnightly). 小6漢字ドリル's advantage is in-app purchases (none vs 1) and iOS requirement (10.0 vs 15.0). On ads and device support there is nothing between them.

How Math Works is free to download; 小6漢字ドリル costs $1.99 up front. How Math Works sells 1 in-app purchase, starting at $3.99 per month. 小6漢字ドリル asks for nothing beyond the download.

小6漢字ドリル ships an update fortnightly, How Math Works every 6 days. The most recent releases landed on November 7, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | 小6漢字ドリル | How Math Works |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Fortnightly | **Every 6 days** |
| Size | 28 MB | 29 MB |
| Requires iOS | **10.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Junpei Shimotsu](https://appshunter.io/developer/882299124) | [Tsuyoshi Chujo](https://appshunter.io/developer/1481316741) |

## What reviewers say

### 小6漢字ドリル

[App page](https://appshunter.io/ios/app/6-56/id1583122194)

**Features:** macOS Compatibility

**In-app purchases:** none


### How Math Works

[App page](https://appshunter.io/ios/app/how-math-works/id6787864882)

**Features:** macOS Compatibility, Family Sharing

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Plan (Monthly) | $3.99 | per month |


## Frequently asked questions

### Is 小6漢字ドリル free?

小6漢字ドリル costs $1.99, with no in-app purchases.

### Is How Math Works free?

How Math Works is free to download, with in-app purchases available.

### Do 小6漢字ドリル or How Math Works have ads?

Neither 小6漢字ドリル nor How Math Works shows ads.

### Which is updated more often, 小6漢字ドリル or How Math Works?

小6漢字ドリル ships an update fortnightly, and How Math Works every 6 days. Most recently, 小6漢字ドリル was updated on November 7, 2026 and How Math Works on November 5, 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.*