# SatRadar vs ISS Satellite Tracker

The clearest difference is rating: ISS Satellite Tracker at 5.0 against SatRadar's 4.3. SatRadar's advantage is update cadence (every 2 days vs every 10 days) and ratings volume (6 vs 1). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. SatRadar sells 2 one-off in-app purchases and ISS Satellite Tracker sells 2 in-app purchases, starting at $9.99 per year. Whichever you choose, the download price is not the number that matters.

ISS Satellite Tracker holds the better App Store score, 5.0 against 4.3. That said, the two scores are not equally well evidenced: SatRadar has 6 ratings behind it against 1, so its average is the more settled of the two.

SatRadar ships an update every 2 days, ISS Satellite Tracker every 10 days. Both last shipped on October 31, 2026.

## The numbers

| Metric | SatRadar | ISS Satellite Tracker |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.3 (6 ratings)](https://appshunter.io/ios/app/satradar-satellite-tracker/id6760600849/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/iss-satellite-tracker/id6801191356/reviews)** |
| Number of ratings | **6** | 1 |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 2 days** | Every 10 days |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 68 MB | 9 MB |
| Requires iOS | **16.4** | 26.0 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [David Hodge](https://appshunter.io/developer/1244489778) | [Digital Doctor LTD](https://appshunter.io/developer/6795967742) |

## What reviewers say

### SatRadar

[App page](https://appshunter.io/ios/app/satradar-satellite-tracker/id6760600849)

Track thousands of satellites in real-time, from the ISS to Starlink constellations. Explore orbital paths, view satellite details, and even travel back in time to witness the history of space exploration. The app offers a detailed view of human activity in low Earth orbit.

**Highlights:** Real-time satellite tracking, View ISS and Tiangong, Global navigation satellite systems, Weather satellite tracking, Detailed satellite information, Time travel visualization, GPU-accelerated performance

**Features:** Family Sharing, SharePlay

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Time Travel | $4.99 | one-time |
| Unlock Starlink | $9.99 | one-time |


### ISS Satellite Tracker

[App page](https://appshunter.io/ios/app/iss-satellite-tracker/id6801191356)

Discover when and where to see the International Space Station and Starlink trains from your location. Get accurate predictions and reminders for visible passes, working entirely offline. Enhance your viewing experience with detailed orbital data and an educational library.

**Highlights:** Accurate pass predictions, Offline functionality, Pass reminders, Live 2D satellite map, Starlink train tracking, 3D orbital globe (Pro), Educational library (Pro)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Annual | $9.99 | per year |
| Pro Lifetime | $16.99 | one-time |


## Frequently asked questions

### Is SatRadar free?

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

### Is ISS Satellite Tracker free?

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

### Which has better reviews, SatRadar or ISS Satellite Tracker?

ISS Satellite Tracker is rated higher. SatRadar averages 4.3 out of 5 from 6 ratings, while ISS Satellite Tracker averages 5.0 from 1 ratings.

### Do SatRadar or ISS Satellite Tracker have ads?

Neither SatRadar nor ISS Satellite Tracker shows ads.

### Which is updated more often, SatRadar or ISS Satellite Tracker?

SatRadar ships an update every 2 days, and ISS Satellite Tracker every 10 days. Most recently, SatRadar was updated on October 31, 2026 and ISS Satellite Tracker on October 31, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*