# CoTan vs 古文単語 300

The clearest difference is in-app purchases: CoTan at none against 古文単語 300's 1. CoTan also leads on update cadence (every 3 days vs fortnightly). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. 古文単語 300 sells 1 one-off in-app purchase. CoTan asks for nothing beyond the download.

CoTan ships an update every 3 days, 古文単語 300 fortnightly. The most recent releases landed on October 12, 2026 and September 30, 2026 respectively.

## The numbers

| Metric | CoTan | 古文単語 300 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | Yes | Yes |
| Update frequency | **Every 3 days** | Fortnightly |
| Size | 28 MB | 34 MB |
| Requires iOS | **15.1** | 16.4 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Ryo Minebayashi](https://appshunter.io/developer/1854415357) | [KAZUHIRO ISHIBASHI](https://appshunter.io/developer/1865380440) |

## What reviewers say

### CoTan

[App page](https://appshunter.io/ios/app/cotan/id6755531559)

**Features:** macOS Compatibility

**In-app purchases:** none


### 古文単語 300

[App page](https://appshunter.io/ios/app/300/id6802690910)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 全語を解放する | $3.99 | one-time |


## Frequently asked questions

### Is CoTan free?

CoTan is free to download, with no in-app purchases.

### Is 古文単語 300 free?

古文単語 300 is free to download, with in-app purchases available.

### Do CoTan or 古文単語 300 have ads?

Both CoTan and 古文単語 300 show ads.

### Which is updated more often, CoTan or 古文単語 300?

CoTan ships an update every 3 days, and 古文単語 300 fortnightly. Most recently, CoTan was updated on October 12, 2026 and 古文単語 300 on September 30, 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.*