# 专业测量仪 vs NAS云管家

The clearest difference is price: NAS云管家 at Free against 专业测量仪's $0.99. 专业测量仪's advantage is update cadence (every 5 days vs every 2 weeks) and device support (3 vs 1). On ads and in-app purchases there is nothing between them.

NAS云管家 is free to download; 专业测量仪 costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

专业测量仪 ships an update every 5 days, NAS云管家 every 2 weeks. The most recent releases landed on October 8, 2026 and September 25, 2026 respectively.

## The numbers

| Metric | 专业测量仪 | NAS云管家 |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 5 days** | Every 2 weeks |
| Size | 123 MB | 8 MB |
| Requires iOS | **14.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 17+ | 4+ |
| Developer | [小飞 刘](https://appshunter.io/developer/1679472128) | [琪 毕](https://appshunter.io/developer/1896643312) |

## What reviewers say

### 专业测量仪

[App page](https://appshunter.io/ios/app/id6449776548)

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

**In-app purchases:** none


### NAS云管家

[App page](https://appshunter.io/ios/app/nas/id6769737250)

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

**In-app purchases:** none


## Frequently asked questions

### Is 专业测量仪 free?

专业测量仪 costs $0.99, with no in-app purchases.

### Is NAS云管家 free?

NAS云管家 is free to download, with no in-app purchases.

### Do 专业测量仪 or NAS云管家 have ads?

Neither 专业测量仪 nor NAS云管家 shows ads.

### Which is updated more often, 专业测量仪 or NAS云管家?

专业测量仪 ships an update every 5 days, and NAS云管家 every 2 weeks. Most recently, 专业测量仪 was updated on October 8, 2026 and NAS云管家 on September 25, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*