# ISS Real vs Supercluster

The clearest difference is price: Supercluster at Free against ISS Real's $2.99. Supercluster also leads on iOS requirement (16.4 vs 18.0). ISS Real's advantage is rating (4.8 vs 4.4) and update cadence (every 4 days vs monthly). On review sentiment, ads, in-app purchases and monetization model there is nothing between them.

Supercluster is free to download; ISS Real costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ISS Real holds the better App Store score, 4.8 against 4.4. That said, the two scores are not equally well evidenced: ISS Real has 1.2K ratings behind it against 190, so its average is the more settled of the two. Written reviews complicate that: 63% of ISS Real's written reviews are positive against 69% of Supercluster's, so the app with the better star average is not the one people write more warmly about.

ISS Real ships an update every 4 days, Supercluster monthly. Both last shipped on October 24, 2026.

## The numbers

| Metric | ISS Real | Supercluster |
| --- | --- | --- |
| Price | $2.99 | **Free** |
| Rating | **[4.8 (1.2K ratings)](https://appshunter.io/ios/app/iss-real-time-tracker-3d/id1079990061/reviews)** | [4.4 (190 ratings)](https://appshunter.io/ios/app/supercluster/id1500045135/reviews) |
| Number of ratings | **1.2K** | 190 |
| Positive reviews | 62.5% of reviews | **69.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 4 days** | Monthly |
| Monetization | Free | Free |
| Size | 258 MB | 46 MB |
| Requires iOS | 18.0 | **16.4** |
| Devices | **iPhone, iPad, Apple Watch** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Michael Stebel](https://appshunter.io/developer/1027443988) | [Supercluster LLC](https://appshunter.io/developer/1500045134) |

## What reviewers say

### ISS Real

[App page](https://appshunter.io/ios/app/iss-real-time-tracker-3d/id1079990061)

Visualize the International Space Station, Tiangong, and Hubble in real-time 3D. Get precise flyover predictions up to 30 days in advance with a star rating system. Stream live HD video from the ISS and learn about the current crew.

**Highlights:** Real-time 3D satellite tracking, Predictive flyover alerts, Interactive Earth globe, Live HD Earth video stream, Crew information and bios, Apple Watch widgets

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases:** none


### Supercluster

[App page](https://appshunter.io/ios/app/supercluster/id1500045135)

Stay updated on all space missions with live launch tracking, detailed spacecraft specs, and original photography. Explore an interactive astronaut database, monitor space stations, and even get notifications for when the ISS is visible from your location.

**Highlights:** Live launch tracking and schedules, Interactive astronaut database, Space station monitoring (ISS, Tiangong), ISS sighting notifications, Spacecraft and payload specifications, Original spaceflight photography

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

**In-app purchases:** none

**What reviewers like**

- 👍 Intuitive and beautiful user interface design
- 🚀 Comprehensive launch tracking and scheduling
- 📱 Easy access to detailed mission and astronaut information
- 🎯 Accurate launch information (when working properly)
- 📺 Integrated live stream links for launches

**What reviewers complain about**

- 🐛 Frequent app crashes when viewing details
- 🔔 Notifications frequently fail or don't work
- ❌ Inaccurate or missing launch information
- ⏰ Delayed updates for postponed/scrubbed launches
- 🌐 No location filtering for launches

**Reported bugs**

- App crashes randomly when reading articles or launch details
- Notifications not working despite being enabled in settings
- Missed launches not appearing in app schedule
- ISS location display ahead of actual position
- Conflicting notification alerts vs. app display for viewing opportunities

**Requested features**

- Location-based filtering (e.g., Cape Canaveral only)
- Dark mode for night launches
- Apple Watch app support
- Home screen and lock screen widgets
- Fine-tuned notification settings (visibility, altitude, brightness)


## Frequently asked questions

### Is ISS Real free?

ISS Real costs $2.99, with no in-app purchases.

### Is Supercluster free?

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

### Which has better reviews, ISS Real or Supercluster?

ISS Real is rated higher. ISS Real averages 4.8 out of 5 from 1.2K ratings, while Supercluster averages 4.4 from 190 ratings.

### Do ISS Real or Supercluster have ads?

Neither ISS Real nor Supercluster shows ads.

### Which is updated more often, ISS Real or Supercluster?

ISS Real ships an update every 4 days, and Supercluster monthly. Most recently, ISS Real was updated on October 24, 2026 and Supercluster on October 24, 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.*