# 知刷PRO vs 妙懂化学

The clearest difference is in-app purchases: 知刷PRO at none against 妙懂化学's 3. 知刷PRO also leads on update cadence (daily vs every 4 days). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. 妙懂化学 sells 3 one-off in-app purchases. 知刷PRO asks for nothing beyond the download.

知刷PRO ships an update daily, 妙懂化学 every 4 days. The most recent releases landed on October 1, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | 知刷PRO | 妙懂化学 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/ar/id6803856365/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Daily** | Every 4 days |
| Monetization | — | Free with in-app purchases |
| Size | 47 MB | 559 MB |
| Requires iOS | **13.0** | 14.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Wanxing (shandong) Network Technology Co., Ltd.](https://appshunter.io/developer/1855806476) | [四川寰视乾坤科技有限公司](https://appshunter.io/developer/1168959978) |

## What reviewers say

### 知刷PRO

[App page](https://appshunter.io/ios/app/pro/id6755715595)

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

**In-app purchases:** none


### 妙懂化学

[App page](https://appshunter.io/ios/app/ar/id6803856365)

This educational app uses AR, interactive maps, and 3D models to make learning chemistry engaging for elementary and middle school students. It features virtual experiments, a comprehensive element encyclopedia, and gamified learning modules.

**Highlights:** AR-enhanced chemical reactions, Interactive element and knowledge maps, Virtual chemistry experiments, 3D molecular models, Gamified learning modules, Comprehensive element encyclopedia, Equation database

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 6个月会员 | $24.99 | one-time |
| 12个月会员 | $39.99 | one-time |
| 永久会员 | $69.99 | one-time |


## Frequently asked questions

### Is 知刷PRO free?

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

### Is 妙懂化学 free?

妙懂化学 is free to download, with in-app purchases available.

### Do 知刷PRO or 妙懂化学 have ads?

Neither 知刷PRO nor 妙懂化学 shows ads.

### Which is updated more often, 知刷PRO or 妙懂化学?

知刷PRO ships an update daily, and 妙懂化学 every 4 days. Most recently, 知刷PRO was updated on October 1, 2026 and 妙懂化学 on October 13, 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.*