# ESA aeolus vs Space Telescope App

The clearest difference is in-app purchases: ESA aeolus at none against Space Telescope App's 4. ESA aeolus also leads on ads (none vs shown) and iOS requirement (10.0 vs 15.0). Space Telescope App's advantage is update cadence (every 10 days vs every 4 months). On price and device support there is nothing between them.

Both are free to download. Space Telescope App sells 4 in-app purchases, starting at $4.99 per month. ESA aeolus asks for nothing beyond the download.

ESA aeolus ships an update every 4 months, Space Telescope App every 10 days. The most recent releases landed on October 25, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | ESA aeolus | Space Telescope App |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.1 (31 ratings)](https://appshunter.io/ios/app/space-telescope-app/id1603876992/reviews)** |
| Number of ratings | — | **31** |
| Positive reviews | — | 40.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 4 months | **Every 10 days** |
| Monetization | — | Free with in-app purchases |
| Size | 152 MB | 104 MB |
| Requires iOS | **10.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [ESA - European Space Agency](https://appshunter.io/developer/429660009) | [KAKHA GIORGASHVILI](https://appshunter.io/developer/1501353984) |

## What reviewers say

### ESA aeolus

[App page](https://appshunter.io/ios/app/esa-aeolus/id1584780880)

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

**In-app purchases:** none


### Space Telescope App

[App page](https://appshunter.io/ios/app/space-telescope-app/id1603876992)

Explore the universe with real-time updates and stunning visuals from NASA's James Webb Space Telescope. Engage with expert insights, join community discussions, and test your knowledge with interactive quizzes. Discover distant galaxies and unlock the secrets of the early universe.

**Highlights:** Live mission updates, Breathtaking image gallery, Expert Q&A with astronomers, Community discussions, Interactive space quizzes, 3D solar system explorer, Exclusive wallpapers

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Ad-Free Plan | $4.99 | per month |
| Ad-Free Annual Access | $29.99 | per year |
| Premium | $2.99 | one-time |
| Buy 1M Points | $99.99 | one-time |


## Frequently asked questions

### Is ESA aeolus free?

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

### Is Space Telescope App free?

Space Telescope App is free to download, with in-app purchases available.

### Do ESA aeolus or Space Telescope App have ads?

Space Telescope App shows ads; ESA aeolus does not.

### Which is updated more often, ESA aeolus or Space Telescope App?

ESA aeolus ships an update every 4 months, and Space Telescope App every 10 days. Most recently, ESA aeolus was updated on October 25, 2026 and Space Telescope App on October 27, 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.*