# EngAce vs CoTan

The clearest difference is in-app purchases: CoTan at none against EngAce's 13. CoTan also leads on update cadence (every 3 days vs weekly). EngAce's advantage is ads (none vs shown). On price, device support and iOS requirement there is nothing between them.

Both are free to download. EngAce sells 13 in-app purchases, starting at $5.99 per month. CoTan asks for nothing beyond the download.

EngAce ships an update weekly, CoTan every 3 days. The most recent releases landed on October 2, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | EngAce | CoTan |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | Weekly | **Every 3 days** |
| Size | 115 MB | 28 MB |
| Requires iOS | **15.0** | 15.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [ムーバクラウド株式会社](https://appshunter.io/developer/1809046206) | [Ryo Minebayashi](https://appshunter.io/developer/1854415357) |

## What reviewers say

### EngAce

[App page](https://appshunter.io/ios/app/engace/id6744716045)

**Features:** macOS Compatibility

**In-app purchases (13)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 大学受験1ヶ月プラン（初回7日間無料） | $5.99 | per month |
| 「英文法の設計図」購入者限定特典 | $5.99 | per month |
| プレミアム1ヶ月プラン | $5.99 | per month |
| TOEIC 1ヶ月プラン | $11.99 | per month |
| TOEIC 1ヶ月プラン（初回7日間無料） | $11.99 | per month |
| 大学受験3ヶ月プラン（初回7日間無料） | $14.99 | per 3 months |
| プレミアム3ヶ月プラン | $14.99 | per 3 months |
| TOEIC 3ヶ月プラン | $29.99 | per 3 months |
| TOEIC 3ヶ月プラン（初回7日間無料） | $29.99 | per 3 months |
| 大学受験1年プラン（初回7日間無料） | $39.99 | per year |
| プレミアム1年プラン | $39.99 | per year |
| TOEIC 1年プラン | $89.99 | per year |
| TOEIC 1年プラン（初回7日間無料） | $89.99 | per year |


### CoTan

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

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is EngAce free?

EngAce is free to download, with in-app purchases available.

### Is CoTan free?

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

### Do EngAce or CoTan have ads?

CoTan shows ads; EngAce does not.

### Which is updated more often, EngAce or CoTan?

EngAce ships an update weekly, and CoTan every 3 days. Most recently, EngAce was updated on October 2, 2026 and CoTan on October 12, 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.*