# 建筑云课 vs ViscosityAR

The clearest difference is update cadence: ViscosityAR at every 5 days against 建筑云课's every 2 months. 建筑云课's advantage is iOS requirement (13.0 vs 16.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

建筑云课 ships an update every 2 months, ViscosityAR every 5 days. The most recent releases landed on October 30, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | 建筑云课 | ViscosityAR |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 5 days** |
| Size | 50 MB | 66 MB |
| Requires iOS | **13.0** | 16.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 17+ | 4+ |
| Developer | [Glodon Company Limited](https://appshunter.io/developer/465903029) | [少鹏 郝](https://appshunter.io/developer/1895576084) |

## What reviewers say

### 建筑云课

[App page](https://appshunter.io/ios/app/id6739609180)

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

**In-app purchases:** none


### ViscosityAR

[App page](https://appshunter.io/ios/app/viscosityar/id6763971709)

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

**In-app purchases:** none


## Frequently asked questions

### Is 建筑云课 free?

建筑云课 is free to download, with no in-app purchases.

### Is ViscosityAR free?

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

### Do 建筑云课 or ViscosityAR have ads?

Neither 建筑云课 nor ViscosityAR shows ads.

### Which is updated more often, 建筑云课 or ViscosityAR?

建筑云课 ships an update every 2 months, and ViscosityAR every 5 days. Most recently, 建筑云课 was updated on October 30, 2026 and ViscosityAR on October 2, 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.*