# OCSICI Mobile App vs Hubble Space Telescope Tracker

The clearest difference is in-app purchases: OCSICI Mobile App at none against Hubble Space Telescope Tracker's 1. OCSICI Mobile App also leads on ads (none vs shown) and iOS requirement (10.0 vs 12.0). Hubble Space Telescope Tracker's advantage is update cadence (every 3 months vs every 17 months). On price and device support there is nothing between them.

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

OCSICI Mobile App ships an update every 17 months, Hubble Space Telescope Tracker every 3 months. The most recent releases landed on October 25, 2026 and November 1, 2026 respectively.

## The numbers

| Metric | OCSICI Mobile App | 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 17 months | **Every 3 months** |
| Monetization | — | Free with in-app purchases |
| Size | 57 MB | 72 MB |
| Requires iOS | **10.0** | 12.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Livro Systems Incorporated](https://appshunter.io/developer/1896544025) | [KAKHA GIORGASHVILI](https://appshunter.io/developer/1501353984) |

## What reviewers say

### OCSICI Mobile App

[App page](https://appshunter.io/ios/app/ocsici-mobile-app/id6464568141)

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

**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 OCSICI Mobile App free?

OCSICI Mobile App 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 OCSICI Mobile App or Hubble Space Telescope Tracker have ads?

Hubble Space Telescope Tracker shows ads; OCSICI Mobile App does not.

### Which is updated more often, OCSICI Mobile App or Hubble Space Telescope Tracker?

OCSICI Mobile App ships an update every 17 months, and Hubble Space Telescope Tracker every 3 months. Most recently, OCSICI Mobile App was updated on October 25, 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.*