# 多啦工具箱 vs 专业测量仪

The clearest difference is price: 多啦工具箱 at Free against 专业测量仪's $0.99. 专业测量仪's advantage is in-app purchases (none vs 1) and update cadence (every 5 days vs monthly). On ads, device support and iOS requirement there is nothing between them.

多啦工具箱 is free to download; 专业测量仪 costs $0.99 up front. 多啦工具箱 sells 1 one-off in-app purchase. 专业测量仪 asks for nothing beyond the download.

多啦工具箱 ships an update monthly, 专业测量仪 every 5 days. The most recent releases landed on October 7, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | 多啦工具箱 | 专业测量仪 |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Monthly | **Every 5 days** |
| Size | 77 MB | 123 MB |
| Requires iOS | **13.0** | 14.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [苏州多啦多啦软件信息服务有限公司](https://appshunter.io/developer/1562702341) | [小飞 刘](https://appshunter.io/developer/1679472128) |

## What reviewers say

### 多啦工具箱

[App page](https://appshunter.io/ios/app/id1613344434)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 多啦工具箱会员 | $2.99 | one-time |


### 专业测量仪

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

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

**In-app purchases:** none


## Frequently asked questions

### Is 多啦工具箱 free?

多啦工具箱 is free to download, with in-app purchases available.

### Is 专业测量仪 free?

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

### Do 多啦工具箱 or 专业测量仪 have ads?

Neither 多啦工具箱 nor 专业测量仪 shows ads.

### Which is updated more often, 多啦工具箱 or 专业测量仪?

多啦工具箱 ships an update monthly, and 专业测量仪 every 5 days. Most recently, 多啦工具箱 was updated on October 7, 2026 and 专业测量仪 on October 25, 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.*