Comparison

Exoplanet vs 3

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

3

Explore the wonders of gravity with this 2D N-body simulator. Experiment with celestial mechanics, create mesmerizing patterns, and customize your simulations. It's a fun and educational playground for anyone curious about physics.

Highlights
  • Simulate gravity interactions
  • Explore preset configurations
  • Customize body size, color, and trails
  • Educational and fun physics experiments
  • Create mesmerizing visual patterns
Features
Read full description

Explore the Wonders of Gravity with 3-Body - A 2D N-Body Simulator! Dive into the fascinating world of physics with 3-Body, a unique 2D N-body simulator inspired by the famous “3-Body Problem” in physics (also the book series and now Netflix show). Whether you’re a science enthusiast, a fan of celestial mechanics, or just looking for something cool to play with, 3-Body offers a fun and educational experience. Key Features: • Simulate Gravity: Watch as bodies with mass interact with each other, forming complex and mesmerizing patterns as they move under the influence of gravity. • Preset Configurations: Explore stable configurations such as the figure-eight orbit of three bodies, a circular orbit of three masses, or a large body orbited by smaller ones. • Customization: Unleash your creativity by customizing the size, color, and trails of the bodies you create. Tailor each simulation to your liking and see how it affects the system. • Educational & Fun: While the app is primarily informational, it’s also incredibly fun to experiment with. Whether you’re learning about gravitational physics or just enjoying the visual spectacle, 3-Body has something for everyone. Why 3-Body? 3-Body isn’t just a tool—it’s a playground for your imagination. With no specific goal other than to explore, discover, and enjoy, this app brings the wonders of gravity to your fingertips. Whether you’re a student, a teacher, or just someone curious about the universe, 3-Body is sure to captivate and entertain you. Download 3-Body today and embark on your journey through the cosmos!

Screenshots

Exoplanet4 screens
34 screens

Verdict

The call

The clearest difference is in-app purchases: 3 at none against Exoplanet's 7. 3 also leads on rating (5.0 vs 4.7) and review sentiment (100% vs 91%). Exoplanet's advantage is ratings volume (978 vs 3) and update cadence (every 2 weeks vs monthly). On price, ads and device support 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. 3 asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

3 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 3, 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 100% of 3's.

UpkeepUpdate frequency

Exoplanet ships an update every 2 weeks, 3 monthly. The most recent releases landed on October 31, 2026 and October 30, 2026 respectively.

Scorecard7 real differences · 3 level
Exoplanet versus 3: the parameters behind the verdict, then further details
ParameterExoplanet3
PriceFreeFree
Rating4.7 (978 ratings)5.0 (3 ratings) — better
Positive reviews90.9% of reviews100.0% of reviews — better
Number of ratings978 — better3
Update frequencyEvery 2 weeks — betterMonthly
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPad, iPod, Apple TV — betteriPhone, iPad, iPod
Requires iOS13.0 — better15.0
Further details — not scored
Size105 MB9 MB
Age rating4+4+
DeveloperHanno ReinCubic Insights LLC

Customer experience

Exoplanet

All ratings956 ratings
Positive93.0%
Neutral2.0%
Negative5.0%
Written reviews485 reviews
Positive90.9%
Neutral3.3%
Negative5.8%

3

All ratings3 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews2 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

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

3

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

3

No in-app purchases

Questions

Is Exoplanet free?
Exoplanet is free to download, with in-app purchases available.
Is 3 free?
3 is free to download, with no in-app purchases.
Which has better reviews, Exoplanet or 3?
3 is rated higher. Exoplanet averages 4.7 out of 5 from 978 ratings, while 3 averages 5.0 from 3 ratings.
Do Exoplanet or 3 have ads?
Neither Exoplanet nor 3 shows ads.
Which is updated more often, Exoplanet or 3?
Exoplanet ships an update every 2 weeks, and 3 monthly. Most recently, Exoplanet was updated on October 31, 2026 and 3 on October 30, 2026.

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