# 云学课堂 vs Sitor

The clearest difference is in-app purchases: 云学课堂 at none against Sitor's 10. 云学课堂 also leads on iOS requirement (10.3 vs 17.0). Sitor's advantage is update cadence (every 2 days vs fortnightly). On price, ads and device support there is nothing between them.

Both are free to download. Sitor sells 10 in-app purchases, starting at $11.99 per month. 云学课堂 asks for nothing beyond the download.

云学课堂 ships an update fortnightly, Sitor every 2 days. The most recent releases landed on September 7, 2026 and September 13, 2026 respectively.

## The numbers

| Metric | 云学课堂 | Sitor |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Fortnightly | **Every 2 days** |
| Size | 103 MB | 41 MB |
| Requires iOS | **10.3** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [大千 陈](https://appshunter.io/developer/1461431689) | [Hangzhou Sitor Cloud Technology Co., Ltd.](https://appshunter.io/developer/6772942927) |

## What reviewers say

### 云学课堂

[App page](https://appshunter.io/ios/app/id6443540324)

**Features:** macOS Compatibility

**In-app purchases:** none


### Sitor

[App page](https://appshunter.io/ios/app/sitor/id6772958025)

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

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Starter Monthly | $11.99 | per month |
| Pro Monthly | $23.99 | per month |
| Starter Annual | $93.99 | per year |
| Pro Annual | $187.99 | per year |
| 50 Credits | $3.99 | one-time |
| 200 Credits | $12.99 | one-time |
| 500 Credits | $27.99 | one-time |
| 1000 Credits | $49.99 | one-time |
| 3000 Credits | $129.99 | one-time |
| 5000 Credits | $199.99 | one-time |


## Frequently asked questions

### Is 云学课堂 free?

云学课堂 is free to download, with no in-app purchases.

### Is Sitor free?

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

### Do 云学课堂 or Sitor have ads?

Neither 云学课堂 nor Sitor shows ads.

### Which is updated more often, 云学课堂 or Sitor?

云学课堂 ships an update fortnightly, and Sitor every 2 days. Most recently, 云学课堂 was updated on September 7, 2026 and Sitor on September 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.*