# RelativityTheory vs GalacticAR for Education

The clearest difference is update cadence: RelativityTheory at every 3 weeks against GalacticAR for Education's every 3 months. RelativityTheory also leads on price ($0.99 vs $4.99) and iOS requirement (14.4 vs 26.0). GalacticAR for Education's advantage is device support (6 vs 3). On ads and in-app purchases there is nothing between them.

RelativityTheory costs $0.99 and GalacticAR for Education $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

RelativityTheory ships an update every 3 weeks, GalacticAR for Education every 3 months. The most recent releases landed on November 7, 2026 and November 10, 2026 respectively.

## The numbers

| Metric | RelativityTheory | GalacticAR for Education |
| --- | --- | --- |
| Price | **$0.99** | $4.99 |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/galacticar-for-education/id6761950044/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 3 months |
| Monetization | — | Paid |
| Size | 6 MB | 222 MB |
| Requires iOS | **14.4** | 26.0 |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, Mac, Apple TV, Apple Watch, Vision Pro** |
| Age rating | 4+ | 4+ |
| Developer | [Takao Akatsu](https://appshunter.io/developer/1530946331) | [Vielfalt Software e.U.](https://appshunter.io/developer/1666796449) |

## What reviewers say

### RelativityTheory

[App page](https://appshunter.io/ios/app/relativitytheory/id1620999874)

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

**In-app purchases:** none


### GalacticAR for Education

[App page](https://appshunter.io/ios/app/galacticar-for-education/id6761950044)

Explore the universe with interactive 3D models and an extensive encyclopedia. Test your knowledge with over 300 quiz questions covering comets, planets, galaxies, and more. Ideal for students and educators seeking a comprehensive astronomy learning experience.

**Highlights:** 300 quiz questions, 121 astronomical topics, 43 interactive 3D models, 16 immersive outer space scenes, 9 main astronomy categories, 6 language options

**Features:** Apple Watch app, iPhone Duo support

**In-app purchases:** none


## Frequently asked questions

### Is RelativityTheory free?

RelativityTheory costs $0.99, with no in-app purchases.

### Is GalacticAR for Education free?

GalacticAR for Education costs $4.99, with no in-app purchases.

### Do RelativityTheory or GalacticAR for Education have ads?

Neither RelativityTheory nor GalacticAR for Education shows ads.

### Which is updated more often, RelativityTheory or GalacticAR for Education?

RelativityTheory ships an update every 3 weeks, and GalacticAR for Education every 3 months. Most recently, RelativityTheory was updated on November 7, 2026 and GalacticAR for Education on November 10, 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.*