# 無限回廊 vs AI英検準1級 Pass

The clearest difference is iOS requirement: 無限回廊 at 15.0 against AI英検準1級 Pass's 17.0. On price and in-app purchases there is nothing between them.

Both are free to download. 無限回廊 sells 1 one-off in-app purchase and AI英検準1級 Pass sells 2 in-app purchases, starting at $3.99 per month. Whichever you choose, the download price is not the number that matters.

## The numbers

| Metric | 無限回廊 | AI英検準1級 Pass |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | — | No |
| Update frequency | — | Every 6 weeks |
| Size | 208 MB | 85 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | — | **iPhone** |
| Age rating | 9+ | 4+ |
| Developer | [LIANG WU](https://appshunter.io/developer/1875643238) | [Daiki Kobayashi](https://appshunter.io/developer/1891718176) |

## What reviewers say

### 無限回廊

[App page](https://appshunter.io/ios/app/infinite-corridor/id6758903564)

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 無限回廊：プロ版（全機能解放） | $4.99 | one-time |


### AI英検準1級 Pass

[App page](https://appshunter.io/ios/app/ai1-pass/id6762535365)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| プレミアム月額プラン | $3.99 | per month |
| プレミアム年額プラン | $34.99 | per year |


## Frequently asked questions

### Is 無限回廊 free?

無限回廊 is free to download, with in-app purchases available.

### Is AI英検準1級 Pass free?

AI英検準1級 Pass is free to download, with in-app purchases available.

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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.*