# TimeDilationX vs iRelativity

The clearest difference is iOS requirement: TimeDilationX at 8.0 against iRelativity's 18.6. 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 | TimeDilationX | iRelativity |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.0 (1 ratings)](https://appshunter.io/ios/app/timedilationx/id1561656853/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Monetization | Free | — |
| Size | 29 MB | 1 MB |
| Requires iOS | **8.0** | 18.6 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [harun tayfun soylemez](https://appshunter.io/developer/453970026) | [Vladimir Kostadinov Stoyanov](https://appshunter.io/developer/1776235767) |

## What reviewers say

### TimeDilationX

[App page](https://appshunter.io/ios/app/timedilationx/id1561656853)

Calculate time dilation based on Einstein's theories of Special and General Relativity. Compare time differences at various locations and track cumulative dilation over time.

**Highlights:** Special Relativity calculations, General Relativity calculations, GPS location integration, Comparison at different locations, Cumulative time dilation tracking, Elapsed time from installation

**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 TimeDilationX free?

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

### Is iRelativity free?

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

### Do TimeDilationX or iRelativity have ads?

Neither TimeDilationX nor iRelativity shows ads.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*