# 环境哨兵 vs 量身高

The clearest difference is in-app purchases: 环境哨兵 at none against 量身高's 1. 环境哨兵 also leads on iOS requirement (11.0 vs 13.0). 量身高's advantage is update cadence (weekly vs every 3 weeks). On price, ads and device support there is nothing between them.

Both are free to download. 量身高 sells 1 in-app purchase, starting at $1.99 per month. 环境哨兵 asks for nothing beyond the download.

环境哨兵 ships an update every 3 weeks, 量身高 weekly. The most recent releases landed on October 27, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | 环境哨兵 | 量身高 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Weekly** |
| Size | 23 MB | 31 MB |
| Requires iOS | **11.0** | 13.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [VISPEK](https://appshunter.io/developer/1447793884) | [秋平 李](https://appshunter.io/developer/1636667539) |

## What reviewers say

### 环境哨兵

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

**Features:** macOS Compatibility

**In-app purchases:** none


### 量身高

[App page](https://appshunter.io/ios/app/id6787011251)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 量身高尊贵会员 | $1.99 | per month |


## Frequently asked questions

### Is 环境哨兵 free?

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

### Is 量身高 free?

量身高 is free to download, with in-app purchases available.

### Do 环境哨兵 or 量身高 have ads?

Neither 环境哨兵 nor 量身高 shows ads.

### Which is updated more often, 环境哨兵 or 量身高?

环境哨兵 ships an update every 3 weeks, and 量身高 weekly. Most recently, 环境哨兵 was updated on October 27, 2026 and 量身高 on October 28, 2026.

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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.*