# Space Images vs Hubble Space Telescope Tracker

The clearest difference is review sentiment: Space Images at 63% against Hubble Space Telescope Tracker's 0%. Space Images also leads on rating (4.6 vs 1.0) and in-app purchases (none vs 1). Hubble Space Telescope Tracker's advantage is iOS requirement (12.0 vs 17.0). On price, update cadence and device support there is nothing between them.

Both are free to download. Hubble Space Telescope Tracker sells 1 one-off in-app purchase. Space Images asks for nothing beyond the download.

Space Images holds the better App Store score, 4.6 against 1.0. That said, the two scores are not equally well evidenced: Space Images has 16 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 63% of Space Images's written reviews are positive against 0% of Hubble Space Telescope Tracker's.

Space Images ships an update every 4 months, Hubble Space Telescope Tracker every 3 months. The most recent releases landed on November 4, 2026 and November 1, 2026 respectively.

## The numbers

| Metric | Space Images | Hubble Space Telescope Tracker |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (16 ratings)](https://appshunter.io/ios/app/space-images/id347075764/reviews)** | [1.0 (2 ratings)](https://appshunter.io/ios/app/hubble-space-telescope-tracker/id6468819172/reviews) |
| Number of ratings | **16** | 2 |
| Positive reviews | **63.0% of reviews** | 0.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 4 months | **Every 3 months** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 23 MB | 72 MB |
| Requires iOS | 17.0 | **12.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Jet Propulsion Laboratory](https://appshunter.io/developer/347075767) | [KAKHA GIORGASHVILI](https://appshunter.io/developer/1501353984) |

## What reviewers say

### Space Images

[App page](https://appshunter.io/ios/app/space-images/id347075764)

Explore breathtaking images from NASA missions, featuring planets, galaxies, and space technology. This app offers widgets for your home screen and StandBy mode, allowing you to view a slideshow while your device charges. You can also bookmark, search, and share your favorite celestial discoveries.

**Highlights:** Latest NASA space images, Widgets for home screen, StandBy mode slideshow, Image notifications, Search and browse categories, Bookmark and share images

**Features:** macOS Compatibility

**In-app purchases:** none


### Hubble Space Telescope Tracker

[App page](https://appshunter.io/ios/app/hubble-space-telescope-tracker/id6468819172)

Follow NASA's Hubble Space Telescope mission in real time. Explore a gallery of stunning images, engage in discussions, and learn about space. Receive notifications for new discoveries and test your knowledge with quizzes.

**Highlights:** Real-time mission progress, Image gallery, Discussion forums, Notifications for new images, 3D Solar system model, Ask an Astronomer feature

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium | $2.99 | one-time |


## Frequently asked questions

### Is Space Images free?

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

### Is Hubble Space Telescope Tracker free?

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

### Which has better reviews, Space Images or Hubble Space Telescope Tracker?

Space Images is rated higher. Space Images averages 4.6 out of 5 from 16 ratings, while Hubble Space Telescope Tracker averages 1.0 from 2 ratings.

### Do Space Images or Hubble Space Telescope Tracker have ads?

Hubble Space Telescope Tracker shows ads; Space Images does not.

### Which is updated more often, Space Images or Hubble Space Telescope Tracker?

Space Images ships an update every 4 months, and Hubble Space Telescope Tracker every 3 months. Most recently, Space Images was updated on November 4, 2026 and Hubble Space Telescope Tracker on November 1, 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.*