# ESA cryosat vs Space Telescope App

The clearest difference is in-app purchases: ESA cryosat at none against Space Telescope App's 4. ESA cryosat also leads on ads (none vs shown) and review sentiment (50% vs 39%). Space Telescope App's advantage is update cadence (every 10 days vs every 6 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 cryosat asks for nothing beyond the download.

ESA cryosat ships an update every 6 months, Space Telescope App every 10 days. The most recent releases landed on November 1, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | ESA cryosat | 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 | **50.0% of reviews** | 38.7% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 6 months | **Every 10 days** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 115 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 cryosat

[App page](https://appshunter.io/ios/app/esa-cryosat/id484020380)

Explore a comprehensive overview of a European Space Agency ice mission, including its unique space and ground segments. Discover real mission measurements, visualize data on a world map, and interact with a 3D satellite model.

**Highlights:** CryoSat mission description, Photos and videos, Mission news updates, Interactive 3D satellite model, World map with orbit position, Visualization of real measurements

**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 cryosat free?

ESA cryosat 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 cryosat or Space Telescope App have ads?

Space Telescope App shows ads; ESA cryosat does not.

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

ESA cryosat ships an update every 6 months, and Space Telescope App every 10 days. Most recently, ESA cryosat was updated on November 1, 2026 and Space Telescope App on November 3, 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.*