# Spitzer Gallery vs Hubble Space Telescope Tracker

The clearest difference is rating: Spitzer Gallery at 4.0 against Hubble Space Telescope Tracker's 1.0. Spitzer Gallery also leads on in-app purchases (none vs 1) and ads (none vs shown). On price, ratings volume and device support there is nothing between them.

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

Spitzer Gallery holds the better App Store score, 4.0 against 1.0. Both are backed by a comparable volume of ratings — 4 and 2 respectively.

Spitzer Gallery ships an update weekly, Hubble Space Telescope Tracker every 3 months. The most recent releases landed on October 24, 2026 and November 1, 2026 respectively.

## The numbers

| Metric | Spitzer Gallery | Hubble Space Telescope Tracker |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.0 (4 ratings)](https://appshunter.io/ios/app/spitzer-gallery/id1493568282/reviews)** | [1.0 (2 ratings)](https://appshunter.io/ios/app/hubble-space-telescope-tracker/id6468819172/reviews) |
| Number of ratings | **4** | 2 |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | **Weekly** | Every 3 months |
| Monetization | **Free** | Free with in-app purchases |
| Size | 78 MB | 72 MB |
| Requires iOS | **10.0** | 12.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Jose Chavez](https://appshunter.io/developer/1493568281) | [KAKHA GIORGASHVILI](https://appshunter.io/developer/1501353984) |

## What reviewers say

### Spitzer Gallery

[App page](https://appshunter.io/ios/app/spitzer-gallery/id1493568282)

Explore stunning images captured by NASA's Spitzer Space Telescope. This app offers a gallery of the telescope's mission images, media feeds, and search functionality. View, save, and share high-resolution infrared images.

**Highlights:** Gallery of latest Spitzer images, Spitzer, JPL, and NASA media feed, Search images and media, Full screen image view with pan/zoom, Share images and links, Save images to device, Auto dark/light mode

**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 Spitzer Gallery free?

Spitzer Gallery 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, Spitzer Gallery or Hubble Space Telescope Tracker?

Spitzer Gallery is rated higher. Spitzer Gallery averages 4.0 out of 5 from 4 ratings, while Hubble Space Telescope Tracker averages 1.0 from 2 ratings.

### Do Spitzer Gallery or Hubble Space Telescope Tracker have ads?

Hubble Space Telescope Tracker shows ads; Spitzer Gallery does not.

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

Spitzer Gallery ships an update weekly, and Hubble Space Telescope Tracker every 3 months. Most recently, Spitzer Gallery was updated on October 24, 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.*