# InScan vs 试卷橡皮擦

The clearest difference is update cadence: InScan at every 4 days against 试卷橡皮擦's every 9 months. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. InScan sells 2 in-app purchases, starting at $9.99 per month and 试卷橡皮擦 sells 3 in-app purchases, starting at $2.99 per 7 days. Whichever you choose, the download price is not the number that matters.

InScan ships an update every 4 days, 试卷橡皮擦 every 9 months. The most recent releases landed on September 14, 2026 and June 27, 2026 respectively.

## The numbers

| Metric | InScan | 试卷橡皮擦 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 4 days** | Every 9 months |
| Size | 40 MB | 30 MB |
| Requires iOS | **15.1** | 15.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [昱 曹](https://appshunter.io/developer/1780251572) | [枭雄 毛](https://appshunter.io/developer/1747634657) |

## What reviewers say

### InScan

[App page](https://appshunter.io/ios/app/inscan-pdf-scanner/id6740538722)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Free trail for 1 week | $9.99 | per month |
| VIP会员资格 | $1.99 | one-time |


### 试卷橡皮擦

[App page](https://appshunter.io/ios/app/ai/id6749604691)

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 慧写解题连续周会员 | $2.99 | per 7 days |
| 连续包月会员 | $3.99 | per month |
| 连续包季会员 | $7.99 | per 3 months |


## Frequently asked questions

### Is InScan free?

InScan is free to download, with in-app purchases available.

### Is 试卷橡皮擦 free?

试卷橡皮擦 is free to download, with in-app purchases available.

### Do InScan or 试卷橡皮擦 have ads?

Neither InScan nor 试卷橡皮擦 shows ads.

### Which is updated more often, InScan or 试卷橡皮擦?

InScan ships an update every 4 days, and 试卷橡皮擦 every 9 months. Most recently, InScan was updated on September 14, 2026 and 试卷橡皮擦 on June 27, 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.*