# AI英文法道場 vs 時間ワニ

The clearest difference is in-app purchases: 時間ワニ at none against AI英文法道場's 1. 時間ワニ also leads on device support. AI英文法道場's advantage is iOS requirement (14.0 vs 17.0). On price there is nothing between them.

Both are free to download. AI英文法道場 sells 1 in-app purchase, starting at $1.99 per month. 時間ワニ asks for nothing beyond the download.

## The numbers

| Metric | AI英文法道場 | 時間ワニ |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/ai/id6499072709/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | Yes | **No** |
| Ads | — | Yes |
| Monetization | Free | — |
| Size | 64 MB | 4 MB |
| Requires iOS | **14.0** | 17.0 |
| Devices | — | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [Yusuke Uemura](https://appshunter.io/developer/1597395122) | [CHIHIRO AKAMA](https://appshunter.io/developer/1854289855) |

## What reviewers say

### AI英文法道場

[App page](https://appshunter.io/ios/app/ai/id6499072709)

Learn English grammar through engaging, game-like challenges. An AI generates endless new problems, ensuring continuous learning. Compete with other users to stay motivated for exams like TOEIC, Eiken, and university entrance tests.

**Highlights:** AI-generated endless grammar problems, Game-like learning experience, Detailed explanations and translations, Competitive multiplayer mode, Preparation for TOEIC, Eiken, and university exams

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| プレミアムプラン | $1.99 | per month |


### 時間ワニ

[App page](https://appshunter.io/ios/app/todo/id6759639274)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is AI英文法道場 free?

AI英文法道場 is free to download, with in-app purchases available.

### Is 時間ワニ free?

時間ワニ is free to download, with no in-app purchases.

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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.*