# O助手 vs 图片标注

The clearest difference is in-app purchases: O助手 at none against 图片标注's 1. O助手 also leads on device support (3 vs 1). On price, ads and iOS requirement there is nothing between them.

Both are free to download. 图片标注 sells 1 one-off in-app purchase. O助手 asks for nothing beyond the download.

## The numbers

| Metric | O助手 | 图片标注 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Weekly | — |
| Size | 56 MB | 4 MB |
| Requires iOS | **15.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 17+ | 4+ |
| Developer | [小舟智能](https://appshunter.io/developer/1707108405) | [涛 罗](https://appshunter.io/developer/765358386) |

## What reviewers say

### O助手

[App page](https://appshunter.io/ios/app/o/id6466230669)

**Features:** macOS Compatibility

**In-app purchases:** none


### 图片标注

[App page](https://appshunter.io/ios/app/id6781538593)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 图片标注 专业版 | $2.99 | one-time |


## Frequently asked questions

### Is O助手 free?

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

### Is 图片标注 free?

图片标注 is free to download, with in-app purchases available.

### Do O助手 or 图片标注 have ads?

Neither O助手 nor 图片标注 shows ads.

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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.*