# Physics Buddy vs Relativity Simulator

The clearest difference is iOS requirement: Physics Buddy at 14 against Relativity Simulator's 17.0. 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.

## The numbers

| Metric | Physics Buddy | Relativity Simulator |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Size | 76 MB | 15 MB |
| Requires iOS | **14** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 17+ | 4+ |
| Developer | [Inderjeet Singh](https://appshunter.io/developer/6773085166) | [际 郭](https://appshunter.io/developer/6797282134) |

## What reviewers say

### Physics Buddy

[App page](https://appshunter.io/ios/app/physics-buddy/id6787417344)

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

**In-app purchases:** none


### Relativity Simulator

[App page](https://appshunter.io/ios/app/relativity-simulator/id6811289729)

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

**In-app purchases:** none


## Frequently asked questions

### Is Physics Buddy free?

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

### Is Relativity Simulator free?

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

### Do Physics Buddy or Relativity Simulator have ads?

Neither Physics Buddy nor Relativity Simulator 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.*