# 卷尺测量仪 vs JonGrow

The clearest difference is in-app purchases: JonGrow at none against 卷尺测量仪's 3. On price, update cadence, ads and device support there is nothing between them.

Both are free to download. 卷尺测量仪 sells 3 one-off in-app purchases. JonGrow asks for nothing beyond the download.

卷尺测量仪 ships an update every 10 days, JonGrow fortnightly. The most recent releases landed on September 30, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | 卷尺测量仪 | JonGrow |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 10 days** | Fortnightly |
| Size | 18 MB | 11 MB |
| Requires iOS | 17.6 | 17.6 |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 9+ |
| Developer | [Shenzhen Chuyue Technology Co.,Ltd](https://appshunter.io/developer/1562971471) | [PuffinStudio](https://appshunter.io/developer/1768487904) |

## What reviewers say

### 卷尺测量仪

[App page](https://appshunter.io/ios/app/ar-and/id6752848919)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 测量月卡 | $2.99 | one-time |
| 季卡 | $6.99 | one-time |
| 年卡 | $29.99 | one-time |


### JonGrow

[App page](https://appshunter.io/ios/app/jongrow/id6761350534)

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

**In-app purchases:** none


## Frequently asked questions

### Is 卷尺测量仪 free?

卷尺测量仪 is free to download, with in-app purchases available.

### Is JonGrow free?

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

### Do 卷尺测量仪 or JonGrow have ads?

Neither 卷尺测量仪 nor JonGrow shows ads.

### Which is updated more often, 卷尺测量仪 or JonGrow?

卷尺测量仪 ships an update every 10 days, and JonGrow fortnightly. Most recently, 卷尺测量仪 was updated on September 30, 2026 and JonGrow on October 12, 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.*