# Exoplanet vs Planetarium 3D

The clearest difference is price: Exoplanet at Free against Planetarium 3D's $1.99. Exoplanet also leads on review sentiment (91% vs 50%) and ratings volume (978 vs 1). Planetarium 3D's advantage is in-app purchases (none vs 7) and rating (5.0 vs 4.7). On ads and device support there is nothing between them.

Exoplanet is free to download; Planetarium 3D costs $1.99 up front. Exoplanet sells 7 one-off in-app purchases. Planetarium 3D asks for nothing beyond the download.

Planetarium 3D holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: Exoplanet has 978 ratings behind it against 1, so its average is the more settled of the two. Written reviews complicate that: 91% of Exoplanet's written reviews are positive against 50% of Planetarium 3D's, so the app with the better star average is not the one people write more warmly about.

Exoplanet ships an update every 2 weeks, Planetarium 3D every 6 weeks. The most recent releases landed on October 31, 2026 and November 6, 2026 respectively.

## The numbers

| Metric | Exoplanet | Planetarium 3D |
| --- | --- | --- |
| Price | **Free** | $1.99 |
| Rating | [4.7 (978 ratings)](https://appshunter.io/ios/app/exoplanet/id327702034/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/planetarium-3d-solar-system/id966700707/reviews)** |
| Number of ratings | **978** | 1 |
| Positive reviews | **90.9% of reviews** | 50.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Every 6 weeks |
| Monetization | **Free with in-app purchases** | Paid |
| Size | 105 MB | 35 MB |
| Requires iOS | **13.0** | 18.6 |
| Devices | **iPhone, iPad, iPod, Apple TV** | iPhone, iPad, Apple TV |
| Age rating | 4+ | 4+ |
| Developer | [Hanno Rein](https://appshunter.io/developer/325840976) | [Solueman Hussain](https://appshunter.io/developer/504255127) |

## What reviewers say

### Exoplanet

[App page](https://appshunter.io/ios/app/exoplanet/id327702034)

Explore a vast, interactive database of discovered exoplanets and their host stars. Visualize their physical properties, locations in the night sky, and orbital paths. Discover the observable universe from Earth to the cosmic microwave background with stunning 3D models and augmented reality features.

**Highlights:** Interactive visualizations and animations, Daily updated exoplanet and host star properties, 3D Milky Way model with exoplanet locations, Augmented reality sky map, Exoplanet orbit and habitable zone visualizations, Data from multiple exoplanet catalogs

**Features:** macOS Compatibility

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Galaxy Clusters and CMB | $0.99 | one-time |
| Asteroids | $0.99 | one-time |
| Gaia Stars | $0.99 | one-time |
| S-Stars | $0.99 | one-time |
| Catalogues | $0.99 | one-time |
| Developer Appreciation Coffee | $1.99 | one-time |
| Kepler Add-on | $2.99 | one-time |

**What reviewers like**

- 🚀 Great app
- 👍 Insanely entertaining
- 👍 Amazing graphics and interactive diorama
- 👍 Detailed explanation of planets
- 👍 Awesome app for astronomy and physics lovers

**What reviewers complain about**

- 🐛 Some exoplanets not showing up in search
- 🐛 Inconsistent behavior when switching between databases
- 🔒 Paid upgrades required to access more features
- 🐛 Upgrade purchase issues with Galaxy Clusters and CMB add-on
- 🐛 Exoplanets represented as generic white balls

**Reported bugs**

- Upgrade purchase issues with Galaxy Clusters and CMB add-on
- Kepler objects of interest disappearing when switching databases

**Requested features**

- Add more detailed textures and visuals for exoplanets
- Ability to view multiple databases simultaneously
- Option to see planet surfaces and atmospheres
- Inclusion of dwarf planets in our solar system
- Ability to zoom in on and explore other galaxies


### Planetarium 3D

[App page](https://appshunter.io/ios/app/planetarium-3d-solar-system/id966700707)

Explore the solar system in an interactive 3D environment. Travel to planets, moons, dwarf planets, and asteroids, with detailed facts and stunning visuals. Launch cinematic tours and capture your favorite views.

**Highlights:** Interactive 3D solar system model, Instant travel to planets and moons, Explore dwarf planets and asteroids, Cinematic tours with various perspectives, Capture and share space views, Real science-inspired facts and data, Supports multiple Apple devices

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

**In-app purchases:** none


## Frequently asked questions

### Is Exoplanet free?

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

### Is Planetarium 3D free?

Planetarium 3D costs $1.99, with no in-app purchases.

### Which has better reviews, Exoplanet or Planetarium 3D?

Planetarium 3D is rated higher. Exoplanet averages 4.7 out of 5 from 978 ratings, while Planetarium 3D averages 5.0 from 1 ratings.

### Do Exoplanet or Planetarium 3D have ads?

Neither Exoplanet nor Planetarium 3D shows ads.

### Which is updated more often, Exoplanet or Planetarium 3D?

Exoplanet ships an update every 2 weeks, and Planetarium 3D every 6 weeks. Most recently, Exoplanet was updated on October 31, 2026 and Planetarium 3D on November 6, 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.*