# 青鹿教室HD vs Phys. Lab

The clearest difference is price: 青鹿教室HD at Free against Phys. Lab's $4.99. 青鹿教室HD also leads on iOS requirement (9.0 vs 15.6). Phys. Lab's advantage is update cadence (every 10 days vs every 5 weeks) and device support (3 vs 1). On ads and in-app purchases there is nothing between them.

青鹿教室HD is free to download; Phys. Lab costs $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

青鹿教室HD ships an update every 5 weeks, Phys. Lab every 10 days. The most recent releases landed on September 17, 2026 and September 16, 2026 respectively.

## The numbers

| Metric | 青鹿教室HD | Phys. Lab |
| --- | --- | --- |
| Price | **Free** | $4.99 |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 weeks | **Every 10 days** |
| Size | 38 MB | 24 MB |
| Requires iOS | **9.0** | 15.6 |
| Devices | iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [广州青鹿教育科技有限公司](https://appshunter.io/developer/1274863451) | [坤 冉](https://appshunter.io/developer/1759927074) |

## What reviewers say

### 青鹿教室HD

[App page](https://appshunter.io/ios/app/hd/id1524612295)

**Features:** macOS Compatibility

**In-app purchases:** none


### Phys. Lab

[App page](https://appshunter.io/ios/app/phys-lab/id6744642758)

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

**In-app purchases:** none


## Frequently asked questions

### Is 青鹿教室HD free?

青鹿教室HD is free to download, with no in-app purchases.

### Is Phys. Lab free?

Phys. Lab costs $4.99, with no in-app purchases.

### Do 青鹿教室HD or Phys. Lab have ads?

Neither 青鹿教室HD nor Phys. Lab shows ads.

### Which is updated more often, 青鹿教室HD or Phys. Lab?

青鹿教室HD ships an update every 5 weeks, and Phys. Lab every 10 days. Most recently, 青鹿教室HD was updated on September 17, 2026 and Phys. Lab on September 16, 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.*