# Hearing Butler vs 雷眼

The clearest difference is in-app purchases: Hearing Butler at none against 雷眼's 1. 雷眼's advantage is device support. On price and iOS requirement there is nothing between them.

Both are free to download. 雷眼 sells 1 one-off in-app purchase. Hearing Butler asks for nothing beyond the download.

## The numbers

| Metric | Hearing Butler | 雷眼 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | — | No |
| Update frequency | — | Every 5 months |
| Size | 28 MB | 34 MB |
| Requires iOS | 12.0 | 12.0 |
| Devices | — | **iPhone, iPad, iPod** |
| Age rating | 17+ | 4+ |
| Developer | [Kunwei Medical Electronics Co., Ltd](https://appshunter.io/developer/1756841421) | [祥利 管](https://appshunter.io/developer/1553028619) |

## What reviewers say

### Hearing Butler

[App page](https://appshunter.io/ios/app/hearing-butler/id6535656345)

**In-app purchases:** none


### 雷眼

[App page](https://appshunter.io/ios/app/waf/id6753199010)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 正式版 | $3.99 | one-time |


## Frequently asked questions

### Is Hearing Butler free?

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

### Is 雷眼 free?

雷眼 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.*