# Copernicus Sentinel vs Satellite Chasers

The clearest difference is review sentiment: Satellite Chasers at 75% against Copernicus Sentinel's 14%. Satellite Chasers also leads on rating (4.5 vs 4.3) and update cadence (every 5 weeks vs every 2 months). Copernicus Sentinel's advantage is in-app purchases (none vs 2). On price, ratings volume, ads and device support there is nothing between them.

Both are free to download. Satellite Chasers sells 2 one-off in-app purchases. Copernicus Sentinel asks for nothing beyond the download.

Satellite Chasers holds the better App Store score, 4.5 against 4.3. Both are backed by a comparable volume of ratings — 18 and 26 respectively. Written reviews point the same way: 14% of Copernicus Sentinel's written reviews are positive against 75% of Satellite Chasers's.

Copernicus Sentinel ships an update every 2 months, Satellite Chasers every 5 weeks. The most recent releases landed on October 2, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | Copernicus Sentinel | Satellite Chasers |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.3 (18 ratings)](https://appshunter.io/ios/app/copernicus-sentinel/id1036738151/reviews) | **[4.5 (26 ratings)](https://appshunter.io/ios/app/satellite-chasers/id1505877457/reviews)** |
| Number of ratings | 18 | **26** |
| Positive reviews | 14.3% of reviews | **75.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 5 weeks** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 56 MB | 34 MB |
| Requires iOS | **14.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [ESA - European Space Agency](https://appshunter.io/developer/429660009) | [Austin Griffith](https://appshunter.io/developer/1505877456) |

## What reviewers say

### Copernicus Sentinel

[App page](https://appshunter.io/ios/app/copernicus-sentinel/id1036738151)

Explore and track Earth observation satellites in real-time. Discover satellite details, view 3D models, and receive notifications for overhead passes. Stay updated on the latest news and products from this space observation program.

**Highlights:** Real-time satellite tracking, Detailed 3D satellite models, Overhead pass notifications, Latest news and product updates, Historical data transmission visualization, Interactive 3D globe exploration

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

**In-app purchases:** none


### Satellite Chasers

[App page](https://appshunter.io/ios/app/satellite-chasers/id1505877457)

Explore the cosmos with this app that tracks nearly 50,000 orbital objects using augmented reality. Discover when satellites will be overhead, read space news, and customize their appearance. Compete with friends on a leaderboard and personalize your viewing experience.

**Highlights:** Track 50,000+ orbital objects, Augmented Reality satellite viewing, Real-time satellite addition, Overhead pass notifications, Integrated space news, Satellite customization, Leaderboard and friend system

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $1.99 | one-time |
| Remove Ads & Buy Me A Coffee | $4.99 | one-time |


## Frequently asked questions

### Is Copernicus Sentinel free?

Copernicus Sentinel is free to download, with no in-app purchases.

### Is Satellite Chasers free?

Satellite Chasers is free to download, with in-app purchases available.

### Which has better reviews, Copernicus Sentinel or Satellite Chasers?

Satellite Chasers is rated higher. Copernicus Sentinel averages 4.3 out of 5 from 18 ratings, while Satellite Chasers averages 4.5 from 26 ratings.

### Do Copernicus Sentinel or Satellite Chasers have ads?

Neither Copernicus Sentinel nor Satellite Chasers shows ads.

### Which is updated more often, Copernicus Sentinel or Satellite Chasers?

Copernicus Sentinel ships an update every 2 months, and Satellite Chasers every 5 weeks. Most recently, Copernicus Sentinel was updated on October 2, 2026 and Satellite Chasers on October 5, 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.*