# ISS Explorer vs LM Space Constellations

ISS Explorer and LM Space Constellations are too close to call on the numbers: across 8 compared parameters — price, rating, ratings volume and ads among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

On the App Store both sit at effectively the same score — 4.9 for ISS Explorer against 5.0 for LM Space Constellations. Both are backed by a comparable volume of ratings — 16 and 9 respectively.

## The numbers

| Metric | ISS Explorer | LM Space Constellations |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.9 (16 ratings)](https://appshunter.io/ios/app/iss-explorer/id1429876038/reviews) | **[5.0 (9 ratings)](https://appshunter.io/ios/app/lm-space-constellations/id1497788521/reviews)** |
| Number of ratings | **16** | 9 |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 10 months | — |
| Monetization | Free | Free |
| Size | 747 MB | 469 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [NASA](https://appshunter.io/developer/355542146) | [Lockheed Martin](https://appshunter.io/developer/400687539) |

## What reviewers say

### ISS Explorer

[App page](https://appshunter.io/ios/app/iss-explorer/id1429876038)

Explore a detailed 3D model of the International Space Station. Rotate, zoom, and select individual components to learn about their function and systems. Organize your view by turning parts and labels on or off.

**Highlights:** Interactive 3D ISS model, Rotate and zoom functionality, Selectable parts with isolation, Detailed information on components, Hierarchical part organization, Toggle parts and labels

**Features:** Vision Pro support

**In-app purchases:** none


### LM Space Constellations

[App page](https://appshunter.io/ios/app/lm-space-constellations/id1497788521)

Explore the fundamentals of satellite mission architecture. Adjust key factors like altitude and satellite lifespan to observe their impact on global internet service delivery. Learn the basics of designing satellite constellations.

**Highlights:** Adjust satellite constellation altitude, Modify satellite lifespan, Control duration of global internet services, Observe factor effects on services, Learn mission architecture basics

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is ISS Explorer free?

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

### Is LM Space Constellations free?

LM Space Constellations is free to download, with no in-app purchases.

### Which has better reviews, ISS Explorer or LM Space Constellations?

LM Space Constellations is rated higher. ISS Explorer averages 4.9 out of 5 from 16 ratings, while LM Space Constellations averages 5.0 from 9 ratings.

### Do ISS Explorer or LM Space Constellations have ads?

Neither ISS Explorer nor LM Space Constellations shows ads.

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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.*