# 海钉约课 vs 智能扫描助手

The clearest difference is in-app purchases: 海钉约课 at none against 智能扫描助手's 3. 海钉约课 also leads on iOS requirement (11.0 vs 13.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. 智能扫描助手 sells 3 in-app purchases, starting at $9.99 per 7 days. 海钉约课 asks for nothing beyond the download.

海钉约课 ships an update monthly, 智能扫描助手 every 2 months. The most recent releases landed on September 16, 2026 and September 28, 2026 respectively.

## The numbers

| Metric | 海钉约课 | 智能扫描助手 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/and-pdf/id6478206264/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | — | 40.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Monthly** | Every 2 months |
| Monetization | — | Free with in-app purchases |
| Size | 84 MB | 44 MB |
| Requires iOS | **11.0** | 13.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 17+ | 4+ |
| Developer | [萱 王](https://appshunter.io/developer/1502971306) | [慧福 朱](https://appshunter.io/developer/1718875690) |

## What reviewers say

### 海钉约课

[App page](https://appshunter.io/ios/app/id1504867376)

**Features:** macOS Compatibility

**In-app purchases:** none


### 智能扫描助手

[App page](https://appshunter.io/ios/app/and-pdf/id6478206264)

This app transforms your phone into a powerful scanner and document converter. Easily digitize documents, extract text, count objects, measure dimensions, and even colorize black and white images. Store your files securely in the cloud for access anytime.

**Highlights:** Document scanning to digital format, Text extraction from images, Object counting, Smart measurement of dimensions, Black and white image colorization, Cloud document storage

**Features:** Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 基础服务订阅 | $9.99 | per 7 days |
| 中级服务订阅 | $29.99 | per month |
| 高级服务订阅 | $39.99 | per 3 months |


## Frequently asked questions

### Is 海钉约课 free?

海钉约课 is free to download, with no in-app purchases.

### Is 智能扫描助手 free?

智能扫描助手 is free to download, with in-app purchases available.

### Do 海钉约课 or 智能扫描助手 have ads?

Neither 海钉约课 nor 智能扫描助手 shows ads.

### Which is updated more often, 海钉约课 or 智能扫描助手?

海钉约课 ships an update monthly, and 智能扫描助手 every 2 months. Most recently, 海钉约课 was updated on September 16, 2026 and 智能扫描助手 on September 28, 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.*