# EngAce vs シャドディク

The clearest difference is update cadence: シャドディク at daily against EngAce's weekly. シャドディク also leads on iOS requirement (13.0 vs 15.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. EngAce sells 13 in-app purchases, starting at $5.99 per month and シャドディク sells 1 in-app purchase, starting at $9.99 per month. Whichever you choose, the download price is not the number that matters.

EngAce ships an update weekly, シャドディク daily. The most recent releases landed on September 15, 2026 and September 19, 2026 respectively.

## The numbers

| Metric | EngAce | シャドディク |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Weekly | **Daily** |
| Size | 115 MB | 108 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [ムーバクラウド株式会社](https://appshunter.io/developer/1809046206) | [StudyPeaks](https://appshunter.io/developer/901134689) |

## 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 |


### シャドディク

[App page](https://appshunter.io/ios/app/toeic/id6749894258)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| プレミアムプラン | $9.99 | per month |


## Frequently asked questions

### Is EngAce free?

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

### Is シャドディク free?

シャドディク is free to download, with in-app purchases available.

### Do EngAce or シャドディク have ads?

Neither EngAce nor シャドディク shows ads.

### Which is updated more often, EngAce or シャドディク?

EngAce ships an update weekly, and シャドディク daily. Most recently, EngAce was updated on September 15, 2026 and シャドディク on September 19, 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.*