# Copernicus Touchbook vs Relativistic Space

The clearest difference is update cadence: Copernicus Touchbook at every 2 weeks against Relativistic Space's every 75 months. Copernicus Touchbook also leads on iOS requirement (9.0 vs 13.0). Relativistic Space's advantage is device support (3 vs 1). On price, 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.

Copernicus Touchbook ships an update every 2 weeks, Relativistic Space every 75 months. The most recent releases landed on October 6, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Copernicus Touchbook | Relativistic Space |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[3.7 (3 ratings)](https://appshunter.io/ios/app/relativistic-space-time/id1463093650/reviews)** |
| Number of ratings | — | **3** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Every 75 months |
| Monetization | — | Free |
| Size | 77 MB | 52 MB |
| Requires iOS | **9.0** | 13.0 |
| Devices | iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [ESA - European Space Agency](https://appshunter.io/developer/429660009) | [Thieberson Gomes](https://appshunter.io/developer/1434771806) |

## What reviewers say

### Copernicus Touchbook

[App page](https://appshunter.io/ios/app/copernicus-touchbook/id1438973507)

**Features:** macOS Compatibility

**In-app purchases:** none


### 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


## Frequently asked questions

### Is Copernicus Touchbook free?

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

### Is Relativistic Space free?

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

### Do Copernicus Touchbook or Relativistic Space have ads?

Neither Copernicus Touchbook nor Relativistic Space shows ads.

### Which is updated more often, Copernicus Touchbook or Relativistic Space?

Copernicus Touchbook ships an update every 2 weeks, and Relativistic Space every 75 months. Most recently, Copernicus Touchbook was updated on October 6, 2026 and Relativistic Space on October 24, 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.*