# 正蒙阅卷 vs DynaPhysics

The clearest difference is iOS requirement: 正蒙阅卷 at 9.0 against DynaPhysics's 15.1. 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.

## The numbers

| Metric | 正蒙阅卷 | DynaPhysics |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Size | 44 MB | 35 MB |
| Requires iOS | **9.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [暄 戴](https://appshunter.io/developer/1530876663) | [锐 冷](https://appshunter.io/developer/1887912487) |

## What reviewers say

### 正蒙阅卷

[App page](https://appshunter.io/ios/app/id1568045874)

**Features:** macOS Compatibility

**In-app purchases:** none


### DynaPhysics

[App page](https://appshunter.io/ios/app/dynaphysics/id6761304770)

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

**In-app purchases:** none


## Frequently asked questions

### Is 正蒙阅卷 free?

正蒙阅卷 is free to download, with no in-app purchases.

### Is DynaPhysics free?

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

### Do 正蒙阅卷 or DynaPhysics have ads?

Neither 正蒙阅卷 nor DynaPhysics 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.*