# 思泉素养 vs FlashScan

The clearest difference is in-app purchases: 思泉素养 at none against FlashScan's 2. 思泉素养 also leads on device support (3 vs 1) and iOS requirement (12.0 vs 17.0). FlashScan's advantage is update cadence (daily vs every 3 weeks). On price and ads there is nothing between them.

Both are free to download. FlashScan sells 2 in-app purchases, starting at $0.29 per month. 思泉素养 asks for nothing beyond the download.

思泉素养 ships an update every 3 weeks, FlashScan daily. The most recent releases landed on October 3, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | 思泉素养 | FlashScan |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Daily** |
| Size | 289 MB | 5 MB |
| Requires iOS | **12.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Beijing Sigao Wanmi Technology Co., Ltd](https://appshunter.io/developer/1694296406) | [立顺 孙](https://appshunter.io/developer/6777447848) |

## What reviewers say

### 思泉素养

[App page](https://appshunter.io/ios/app/id6450202603)

**Features:** macOS Compatibility

**In-app purchases:** none


### FlashScan

[App page](https://appshunter.io/ios/app/flashscan-pdf-ocr-scanner/id6808579508)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Monthly | $0.29 | per month |
| Pro Yearly | $1.99 | per year |


## Frequently asked questions

### Is 思泉素养 free?

思泉素养 is free to download, with no in-app purchases.

### Is FlashScan free?

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

### Do 思泉素养 or FlashScan have ads?

Neither 思泉素养 nor FlashScan shows ads.

### Which is updated more often, 思泉素养 or FlashScan?

思泉素养 ships an update every 3 weeks, and FlashScan daily. Most recently, 思泉素养 was updated on October 3, 2026 and FlashScan on October 9, 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.*