# T檢定 vs Mirror

The clearest difference is in-app purchases: Mirror at none against T檢定's 1. T檢定's advantage is device support (4 vs 2). On price, ads and iOS requirement there is nothing between them.

Both are free to download. T檢定 sells 1 one-off in-app purchase. Mirror asks for nothing beyond the download.

## The numbers

| Metric | T檢定 | Mirror |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | — | Every 6 days |
| Size | 3 MB | 48 MB |
| Requires iOS | **15.0** | 15.1 |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [KUEI YANG CHIU](https://appshunter.io/developer/1872901134) | [PING JUEI TSAI](https://appshunter.io/developer/1895861290) |

## What reviewers say

### T檢定

[App page](https://appshunter.io/ios/app/t-plus/id6759829255)

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock Pro Version | $8.99 | one-time |


### Mirror

[App page](https://appshunter.io/ios/app/mirror-ai-speech-coach/id6764643543)

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

**In-app purchases:** none


## Frequently asked questions

### Is T檢定 free?

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

### Is Mirror free?

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

### Do T檢定 or Mirror have ads?

Neither T檢定 nor Mirror shows ads.

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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.*