# 刘老师系列 vs 小狐物理实验室

The clearest difference is iOS requirement: 刘老师系列 at 9.0 against 小狐物理实验室's 17.0. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. 刘老师系列 sells 1 one-off in-app purchase and 小狐物理实验室 sells 2 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.

## The numbers

| Metric | 刘老师系列 | 小狐物理实验室 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 5 months | — |
| Size | 148 MB | 1 MB |
| Requires iOS | **9.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [成城 高](https://appshunter.io/developer/1043441388) | [宁 王](https://appshunter.io/developer/431513082) |

## What reviewers say

### 刘老师系列

[App page](https://appshunter.io/ios/app/7/id1284412499)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 刘老师-译林版 英语七年级（下）全部功能 | $2.99 | one-time |


### 小狐物理实验室

[App page](https://appshunter.io/ios/app/id6770296396)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| iFox Physics Lab Monthly | $1.99 | per month |
| iFox Physics Lab Yearly | $14.99 | per year |


## Frequently asked questions

### Is 刘老师系列 free?

刘老师系列 is free to download, with in-app purchases available.

### Is 小狐物理实验室 free?

小狐物理实验室 is free to download, with in-app purchases available.

### Do 刘老师系列 or 小狐物理实验室 have ads?

Neither 刘老师系列 nor 小狐物理实验室 shows ads.

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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.*