Comparison

Exoplanet vs Hubble

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

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.

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
Read full description

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.

About

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.

Highlights
  • 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
Features
Read full description

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

Exoplanet4 screens
Hubble4 screens

Verdict

The call

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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Exoplanet sells 7 one-off in-app purchases. Hubble asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

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.

UpkeepUpdate frequency

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.

Scorecard9 real differences · 1 level
Exoplanet versus Hubble: the parameters behind the verdict, then further details
ParameterExoplanetHubble
PriceFreeFree
Rating4.7 (974 ratings) — better4.4 (8 ratings)
Positive reviews90.9% of reviews — better0.0% of reviews
Number of ratings974 — better8
Update frequencyEvery 2 weeks — betterEvery 5 months
AdsNo — betterYes
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesAd-supported — better
DevicesiPhone, iPad, iPod, Apple TV — betteriPhone, iPad
Requires iOS13.0 — better17.0
Further details — not scored
Size105 MB2.9 GB
Age rating4+9+
DeveloperHanno ReinAlparslan Topbas

Customer experience

Exoplanet

All ratings956 ratings
Positive93.0%
Neutral2.0%
Negative5.0%
Written reviews484 reviews
Positive90.9%
Neutral3.3%
Negative5.8%

Hubble

All ratings8 ratings
Positive87.5%
Neutral0.0%
Negative12.5%
Written reviews1 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

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
Show 4 more
  • 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

7 purchases

Exoplanet

One-time7
  • Galaxy Clusters and CMB$0.99
  • Asteroids$0.99
  • Gaia Stars$0.99
Show 4 more
  • S-Stars$0.99
  • Catalogues$0.99
  • Developer Appreciation Coffee$1.99
  • Kepler Add-on$2.99
None

Hubble

No in-app purchases

Questions

Is Exoplanet free?
Exoplanet is free to download, with in-app purchases available.
Is Hubble free?
Hubble is free to download, with no in-app purchases.
Which has better reviews, Exoplanet or Hubble?
Exoplanet is rated higher. Exoplanet averages 4.7 out of 5 from 974 ratings, while Hubble averages 4.4 from 8 ratings.
Do Exoplanet or Hubble have ads?
Hubble shows ads; Exoplanet does not.
Which is updated more often, Exoplanet or Hubble?
Exoplanet ships an update every 2 weeks, and Hubble every 5 months. Most recently, Exoplanet was updated on October 23, 2026 and Hubble on October 16, 2026.

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