# 环境哨兵 vs Clear rec

The clearest difference is in-app purchases: 环境哨兵 at none against Clear rec's 2. 环境哨兵 also leads on device support (3 vs 1) and iOS requirement (11.0 vs 16.0). On price and ads there is nothing between them.

Both are free to download. Clear rec sells 2 in-app purchases, starting at $4.99 per 7 days. 环境哨兵 asks for nothing beyond the download.

## The numbers

| Metric | 环境哨兵 | Clear rec |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | — |
| Size | 23 MB | 4 MB |
| Requires iOS | **11.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Vispek Co., Ltd](https://appshunter.io/developer/1447793884) | [Link Cross-Border E-Commerce Co., Limited](https://appshunter.io/developer/1700542022) |

## What reviewers say

### 环境哨兵

[App page](https://appshunter.io/ios/app/id6445802438)

**Features:** macOS Compatibility

**In-app purchases:** none


### Clear rec

[App page](https://appshunter.io/ios/app/clear-rec-audio-memos/id6758987196)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Ultra | $4.99 | per 7 days |
| Yearly Ultra | $39.99 | per year |


## Frequently asked questions

### Is 环境哨兵 free?

环境哨兵 is free to download, with no in-app purchases.

### Is Clear rec free?

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

### Do 环境哨兵 or Clear rec have ads?

Neither 环境哨兵 nor Clear rec 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.*