# eTracking Admin vs Hubble Space Telescope Tracker

The clearest difference is in-app purchases: eTracking Admin at none against Hubble Space Telescope Tracker's 1. eTracking Admin also leads on ads (none vs shown). Hubble Space Telescope Tracker's advantage is update cadence (every 3 months vs every 9 months). On price, device support and iOS requirement there is nothing between them.

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

eTracking Admin ships an update every 9 months, Hubble Space Telescope Tracker every 3 months. The most recent releases landed on September 26, 2026 and September 25, 2026 respectively.

## The numbers

| Metric | eTracking Admin | Hubble Space Telescope Tracker |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[1.0 (2 ratings)](https://appshunter.io/ios/app/hubble-space-telescope-tracker/id6468819172/reviews)** |
| Number of ratings | — | **2** |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 9 months | **Every 3 months** |
| Monetization | — | Free with in-app purchases |
| Size | 43 MB | 72 MB |
| Requires iOS | 12.3 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [etrackingpro solutions private limited](https://appshunter.io/developer/1216991579) | [KAKHA GIORGASHVILI](https://appshunter.io/developer/1501353984) |

## What reviewers say

### eTracking Admin

[App page](https://appshunter.io/ios/app/etracking-admin/id1474346730)

**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

**In-app purchases (1)**

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


## Frequently asked questions

### Is eTracking Admin free?

eTracking Admin 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.

### Do eTracking Admin or Hubble Space Telescope Tracker have ads?

Hubble Space Telescope Tracker shows ads; eTracking Admin does not.

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

eTracking Admin ships an update every 9 months, and Hubble Space Telescope Tracker every 3 months. Most recently, eTracking Admin was updated on September 26, 2026 and Hubble Space Telescope Tracker on September 25, 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.*