Exoplanet vs Hubble
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Exoplanet
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.
- 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
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Exoplanets are planets orbiting stars beyond our own solar system. This app allows you to explore all discovered exoplanets, their measured physical properties, their location in the night sky, and their host stars. An interactive model shows you the entire observable universe, all the way from the surface of the Earth to the cosmic microwave background. This app has been developed by a professional astronomer. Main features: * Interactive visualizations and animations. * Physical properties of all detected exoplanets and their host stars, updated on a daily basis. * Stunning 3D model of our Milky Way showing the location of all known exoplanets. You can zoom into any planetary system, explore how the night sky and the constellations look from the surface of other planets, or zoom out and see other local galaxies and galaxy clusters as well as the cosmic microwave background. * Visualizations of exoplanet orbits and the habitable zone. * Choose between the Open Exoplanet Catalogue, the NASA Exoplanet Archive, and the Extrasolar Planet Encyclopedia (exoplanet.eu). * Push notifications are sent out whenever a new planet is discovered. * Augmented reality sky map: point the phone towards the sky to find an exoplanet! * Interactive multi-touch correlation plots. * Solar System planets, major moons, and asteroids are included. * Explore S-Stars orbiting the black hole at the Galactic Center of our Milky Way * Background information about exoplanets and detection methods. * Full support of planets in binary, triple, quadruple systems and orphan planets. * Real-time ray tracing on the GPU.
Hubble
Explore the universe in high definition with stunning images from the Hubble Space Telescope. Discover galaxies, nebulae, and star clusters with detailed descriptions and an immersive slideshow experience. Stay updated with the latest cosmic discoveries.
- High-resolution cosmic image gallery
- Immersive slideshow mode
- Searchable database of celestial objects
- Detailed scientific descriptions
- Real-time updates for 'Picture of the Week'
- Links to NASA/ESA archives
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Embark on a breathtaking journey across the universe with Hubble. Experience the awe-inspiring beauty of deep space through the lens of the world’s most famous space telescope. From distant galaxies to colorful nebulae, the Hubble Cosmic Gallery brings the majesty of the cosmos directly to your fingertips in stunning high resolution. Fresh from Hubble: Stay updated with the "Picture of the Week." Our real-time ESA/Hubble RSS integration ensures you never miss a new cosmic discovery. Immense HD Library: Browse a curated collection of the most iconic Hubble images. Explore star clusters, supernova remnants, and the farthest reaches of the observable universe. Immersive Slideshow: Turn your device into a window to the stars. Enjoy a seamless, auto-playing slideshow experience with ambient transitions and deep-space vibes. Search & Discover: Looking for a specific nebula or galaxy? Use our lightning-fast search to find exactly what you're looking for among hundreds of high-res entries. Premium UI/UX: Designed with SwiftUI, featuring elegant glassmorphism effects, parallax carousels, and tactical haptic feedback for a truly premium feel. Learn as You Explore: Every image comes with detailed scientific descriptions and direct links to official NASA/ESA archives for those who want to dive deeper into the science. Whether you’re a space enthusiast, a student of astronomy, or simply someone who appreciates the beauty of our universe, Hubble provides a specialized, clutter-free experience for celestial exploration. Download Hubble today and witness the grandeur of the stars like never before.
Screenshots
Verdict
The clearest difference is review sentiment: Exoplanet at 91% against Hubble's 0%. Exoplanet also leads on ads (none vs shown) and update cadence (every 2 weeks vs every 5 months). Hubble's advantage is in-app purchases (none vs 7). On price there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Exoplanet sells 7 one-off in-app purchases. Hubble asks for nothing beyond the download.
Exoplanet holds the better App Store score, 4.7 against 4.4. That said, the two scores are not equally well evidenced: Exoplanet has 974 ratings behind it against 8, so its average is the more settled of the two. Written reviews point the same way: 91% of Exoplanet's written reviews are positive against 0% of Hubble's.
Exoplanet ships an update every 2 weeks, Hubble every 5 months. The most recent releases landed on October 23, 2026 and October 16, 2026 respectively.
| Parameter | Exoplanet | Hubble |
|---|---|---|
| Price | Free | Free |
| Rating | 4.7 (974 ratings) — better | 4.4 (8 ratings) |
| Positive reviews | 90.9% of reviews — better | 0.0% of reviews |
| Number of ratings | 974 — better | 8 |
| Update frequency | Every 2 weeks — better | Every 5 months |
| Ads | No — better | Yes |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Ad-supported — better |
| Devices | iPhone, iPad, iPod, Apple TV — better | iPhone, iPad |
| Requires iOS | 13.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 105 MB | 2.9 GB |
| Age rating | 4+ | 9+ |
| Developer | Hanno Rein | Alparslan Topbas |
Customer experience
Exoplanet
Hubble
Bugs and requests
Exoplanet
Reported bugs
2 issues- Upgrade purchase issues with Galaxy Clusters and CMB add-on
- Kepler objects of interest disappearing when switching databases
Requested features
9 requests- 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
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- Addition of black holes, pulsars, and other celestial objects
- Inclusion of satellite and spacecraft orbits
- Narration or audio commentary for key discoveries
- Ability to view the universe from the surface of planets
Hubble
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Exoplanet
- Galaxy Clusters and CMB$0.99
- Asteroids$0.99
- Gaia Stars$0.99
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- S-Stars$0.99
- Catalogues$0.99
- Developer Appreciation Coffee$1.99
- Kepler Add-on$2.99
Hubble
No in-app purchases
Questions
Is Exoplanet free?
Is Hubble free?
Which has better reviews, Exoplanet or Hubble?
Do Exoplanet or Hubble have ads?
Which is updated more often, Exoplanet or Hubble?
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