# Copernicus Touchbook vs Overmeapp

The clearest difference is update cadence: Copernicus Touchbook at every 2 weeks against Overmeapp's every 2 months. Copernicus Touchbook also leads on iOS requirement (9.0 vs 16.0). 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.

Copernicus Touchbook ships an update every 2 weeks, Overmeapp every 2 months. The most recent releases landed on October 6, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | Copernicus Touchbook | Overmeapp |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (2 ratings)](https://appshunter.io/ios/app/overmeapp/id6499385055/reviews)** |
| Number of ratings | — | **2** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Every 2 months |
| Monetization | — | Free |
| Size | 77 MB | 46 MB |
| Requires iOS | **9.0** | 16.0 |
| Devices | iPad | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [ESA - European Space Agency](https://appshunter.io/developer/429660009) | [Thomas Dunn](https://appshunter.io/developer/1743319792) |

## What reviewers say

### Copernicus Touchbook

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

**Features:** macOS Compatibility

**In-app purchases:** none


### Overmeapp

[App page](https://appshunter.io/ios/app/overmeapp/id6499385055)

Visualize satellite passes and upcoming launches. Explore the aurora borealis on a map and check light pollution levels. Access publicly available satellite data.

**Highlights:** Satellite overhead pass visualization, Upcoming launch updates, Aurora borealis map visualization, Light pollution level exploration, Public satellite data search

**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 Overmeapp free?

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

### Do Copernicus Touchbook or Overmeapp have ads?

Neither Copernicus Touchbook nor Overmeapp shows ads.

### Which is updated more often, Copernicus Touchbook or Overmeapp?

Copernicus Touchbook ships an update every 2 weeks, and Overmeapp every 2 months. Most recently, Copernicus Touchbook was updated on October 6, 2026 and Overmeapp on October 7, 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.*