# Relatively Simple vs The Relativity Tales

The clearest difference is in-app purchases: Relatively Simple at none against The Relativity Tales's 1. Relatively Simple also leads on ads (none vs shown) and ratings volume (7 vs 2). The Relativity Tales's advantage is update cadence (weekly vs monthly). On price, rating, review sentiment and device support there is nothing between them.

Both are free to download. The Relativity Tales sells 1 one-off in-app purchase. Relatively Simple asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 5.0 for Relatively Simple against 5.0 for The Relativity Tales. Both are backed by a comparable volume of ratings — 7 and 2 respectively. Written reviews split almost evenly too, at 100% and 100% positive.

Relatively Simple ships an update monthly, The Relativity Tales weekly. The most recent releases landed on September 19, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | Relatively Simple | The Relativity Tales |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (7 ratings)](https://appshunter.io/ios/app/relatively-simple/id1464624768/reviews) | [5.0 (2 ratings)](https://appshunter.io/ios/app/the-relativity-tales/id6747155057/reviews) |
| Number of ratings | **7** | 2 |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Monthly | **Weekly** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 434 MB | 624 MB |
| Requires iOS | **8.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 9+ |
| Developer | [Ira Rothstein](https://appshunter.io/developer/1464624767) | [Sang Heon Park](https://appshunter.io/developer/1675276100) |

## What reviewers say

### 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


### The Relativity Tales

[App page](https://appshunter.io/ios/app/the-relativity-tales/id6747155057)

Explore the principles of special relativity through interactive thought experiments and engaging narratives. This app transforms complex scientific concepts into intuitive experiences, making science accessible and emotionally resonant.

**Highlights:** Interactive thought experiments, Narrative-driven learning, Intuitive science exploration, Exploration of spacetime concepts, Courtroom thriller scenarios, Space exploration narratives

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock "The Relativity Tales" | $4.99 | one-time |


## Frequently asked questions

### Is Relatively Simple free?

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

### Is The Relativity Tales free?

The Relativity Tales is free to download, with in-app purchases available.

### Which has better reviews, Relatively Simple or The Relativity Tales?

Relatively Simple and The Relativity Tales are both rated 5.0 out of 5 on the App Store, from 7 and 2 ratings respectively.

### Do Relatively Simple or The Relativity Tales have ads?

The Relativity Tales shows ads; Relatively Simple does not.

### Which is updated more often, Relatively Simple or The Relativity Tales?

Relatively Simple ships an update monthly, and The Relativity Tales weekly. Most recently, Relatively Simple was updated on September 19, 2026 and The Relativity Tales on October 28, 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.*