# Relativistic Space vs Relatively Simple

The clearest difference is rating: Relatively Simple at 5.0 against Relativistic Space's 3.0. Relatively Simple also leads on update cadence (monthly vs every 75 months) and ratings volume (7 vs 2). On price, review sentiment, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Relatively Simple holds the better App Store score, 5.0 against 3.0. Both are backed by a comparable volume of ratings — 2 and 7 respectively. Written reviews split almost evenly too, at 100% and 100% positive.

Relativistic Space ships an update every 75 months, Relatively Simple monthly. The most recent releases landed on June 1, 2026 and September 19, 2026 respectively.

## The numbers

| Metric | Relativistic Space | Relatively Simple |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.0 (2 ratings)](https://appshunter.io/ios/app/relativistic-space-time/id1463093650/reviews) | **[5.0 (7 ratings)](https://appshunter.io/ios/app/relatively-simple/id1464624768/reviews)** |
| Number of ratings | 2 | **7** |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 75 months | **Monthly** |
| Monetization | Free | Free |
| Size | 52 MB | 434 MB |
| Requires iOS | 13.0 | **8.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Thieberson Gomes](https://appshunter.io/developer/1434771806) | [Ira Rothstein](https://appshunter.io/developer/1464624767) |

## What reviewers say

### Relativistic Space

[App page](https://appshunter.io/ios/app/relativistic-space-time/id1463093650)

This educational tool simulates the behavior of space and time at high speeds. Developed as part of a master's dissertation, it focuses on relativistic effects without considering acceleration.

**Highlights:** Relativistic velocity simulation, Space-time behavior visualization, Pedagogical tool, Master's dissertation project

**Features:** macOS Compatibility

**In-app purchases:** none


### Relatively Simple

[App page](https://appshunter.io/ios/app/relatively-simple/id1464624768)

This app offers an experiential explanation of Einstein's theory of Special Relativity. Designed by a Carnegie Mellon University professor, it breaks down complex concepts like spacetime and E=mc^2 for a general audience.

**Highlights:** Experiential learning approach, Explains Special Relativity, Demystifies complex physics concepts, Designed by university professor, Accessible for general audience

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Relativistic Space free?

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

### Is Relatively Simple free?

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

### Which has better reviews, Relativistic Space or Relatively Simple?

Relatively Simple is rated higher. Relativistic Space averages 3.0 out of 5 from 2 ratings, while Relatively Simple averages 5.0 from 7 ratings.

### Do Relativistic Space or Relatively Simple have ads?

Neither Relativistic Space nor Relatively Simple shows ads.

### Which is updated more often, Relativistic Space or Relatively Simple?

Relativistic Space ships an update every 75 months, and Relatively Simple monthly. Most recently, Relativistic Space was updated on June 1, 2026 and Relatively Simple on September 19, 2026.

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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.*