# Einstein's Elevator vs iRelativity

The clearest difference is price: iRelativity at Free against Einstein's Elevator's $1.99. Einstein's Elevator's advantage is iOS requirement (13.2 vs 18.6). On ads, in-app purchases and device support there is nothing between them.

iRelativity is free to download; Einstein's Elevator costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | Einstein's Elevator | iRelativity |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| In-app purchases | No | No |
| Ads | No | No |
| Size | 41 MB | 1 MB |
| Requires iOS | **13.2** | 18.6 |
| Devices | iPad, Apple TV | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Ventura Educational Systems](https://appshunter.io/developer/371324172) | [Vladimir Kostadinov Stoyanov](https://appshunter.io/developer/1776235767) |

## What reviewers say

### Einstein's Elevator

[App page](https://appshunter.io/ios/app/einsteins-elevator/id6648794228)

**Features:** macOS Compatibility

**In-app purchases:** none


### iRelativity

[App page](https://appshunter.io/ios/app/irelativity/id6776330770)

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

**In-app purchases:** none


## Frequently asked questions

### Is Einstein's Elevator free?

Einstein's Elevator costs $1.99, with no in-app purchases.

### Is iRelativity free?

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

### Do Einstein's Elevator or iRelativity have ads?

Neither Einstein's Elevator nor iRelativity 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.*