# 身云 vs 注册计量师真题库

The clearest difference is update cadence: 身云 at fortnightly against 注册计量师真题库's every 12 months. 注册计量师真题库's advantage is iOS requirement (13.0 vs 15.0). On price, ads, 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.

身云 ships an update fortnightly, 注册计量师真题库 every 12 months. The most recent releases landed on November 2, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | 身云 | 注册计量师真题库 |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 12 months |
| Monetization | — | Free with in-app purchases |
| Size | 34 MB | 56 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [金联汇通信息技术有限公司](https://appshunter.io/developer/956701381) | [将军 黄](https://appshunter.io/developer/1745234400) |

## What reviewers say

### 身云

[App page](https://appshunter.io/ios/app/id1125891695)

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

**In-app purchases:** none


### 注册计量师真题库

[App page](https://appshunter.io/ios/app/2025/id6738836183)

This app provides practice questions and mock exams for the Registered Metrologist qualification exam. It covers exam syllabi and official textbooks, offering daily exercises, topic-specific practice, and simulated test environments to help candidates prepare effectively.

**Highlights:** Daily practice tests, Topic-specific exercises, Past exam papers, Mock exam simulations, Exam syllabus coverage

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

**In-app purchases:** none


## Frequently asked questions

### Is 身云 free?

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

### Is 注册计量师真题库 free?

注册计量师真题库 is free to download, with no in-app purchases.

### Do 身云 or 注册计量师真题库 have ads?

Neither 身云 nor 注册计量师真题库 shows ads.

### Which is updated more often, 身云 or 注册计量师真题库?

身云 ships an update fortnightly, and 注册计量师真题库 every 12 months. Most recently, 身云 was updated on November 2, 2026 and 注册计量师真题库 on October 30, 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.*