# 勘察助手 vs NiuNiuTools

The clearest difference is ads: 勘察助手 at none against NiuNiuTools's shown. 勘察助手 also leads on iOS requirement (9.1 vs 15.6). NiuNiuTools's advantage is update cadence (every 2 months vs every 6 months). On price, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

勘察助手 ships an update every 6 months, NiuNiuTools every 2 months. The most recent releases landed on October 25, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | 勘察助手 | NiuNiuTools |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 6 months | **Every 2 months** |
| Size | 9 MB | 68 MB |
| Requires iOS | **9.1** | 15.6 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [GLOBAL SAFETY TANZER TECHNOLOGY CO.LTD](https://appshunter.io/developer/1473548609) | [晨光 牛](https://appshunter.io/developer/1787813512) |

## What reviewers say

### 勘察助手

[App page](https://appshunter.io/ios/app/id1535190504)

**Features:** macOS Compatibility

**In-app purchases:** none


### NiuNiuTools

[App page](https://appshunter.io/ios/app/niuniutools/id6740170639)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is 勘察助手 free?

勘察助手 is free to download, with no in-app purchases.

### Is NiuNiuTools free?

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

### Do 勘察助手 or NiuNiuTools have ads?

NiuNiuTools shows ads; 勘察助手 does not.

### Which is updated more often, 勘察助手 or NiuNiuTools?

勘察助手 ships an update every 6 months, and NiuNiuTools every 2 months. Most recently, 勘察助手 was updated on October 25, 2026 and NiuNiuTools on October 28, 2026.

---

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