Solar Walk vs Intergalactic Solar System
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Solar Walk
Explore a detailed 3D model of our solar system and the universe. Interact with planets, moons, and satellites, and take virtual flights through space. Travel through time to see the universe's past and learn with educational movies.
- Interactive 3D solar system model
- Virtual flights between celestial bodies
- Time travel feature for historical views
- Educational movies about space
- Orrery and true-to-scale view modes
- Milky Way Galaxy view
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Solar Walk is an amazing 3D model of our Solar system bringing the universe to the palm of your hand and allowing you to interact with planets, satellites, moons, comets and other space objects anytime and anywhere. Start your fascinating journey through the realms of space and learn more about the universe we live in. *** Over 6 million users!*** *** National Parenting Publications Awards (NAPPA) - GOLD winner in the Educational Tools for Parents and Children category! *** *** A Parents’ Choice Gold Award Winner *** “Simply amazing.” - Macworld “Solar Walk serves up a visually impressive 3D model of our solar system. Set against a haunting, atmospheric soundscape, the app shows planets and satellites in their correct positions, and offers mini movies, facts and other related tidbits.” - TNW “This jaw-dropping app provides a wholly interactive 3D model of our solar system, one that’s had me hooked for days. It’s the kind of thing you can imagine a science teacher using in the classroom of the future — except that we don’t have to wait.” - CNet “Zoom from Mercury to Pluto (which makes the cut in this app), passing each planet’s moons along the way. Because Solar Walk knows what time it is, the planets are in proper orientation to the Sun: Earth is dark where it is currently night and gradually lightens to daytime on the other side.” - NY Times "It's great for showing my students the relative positions of the planets in the solar system, the satellites orbiting the Earth and our place in the galaxy. Awesome with a smartboard as well." - by jbrown61 Solar Walk enables you to: ► Observe the 3D model of our Solar system with all its objects in real time and in a proper orientation. Turn into an astronomer and explore planets, moons, satellites, asteroids, dwarf planets, comets, stars and other celestial bodies. Enjoy gorgeous graphics and visuals while navigating through the solar system. ► Make virtual flights from one space object to another. ► Travel in time and see what the universe and our Solar system looked like at a certain period. ► Find an exciting view of the Milky Way Galaxy. ► Watch a collection of educational solar system movies to learn about space-related topics including Earth's moon phases, Earth's cycles, tidal phenomena, and zodiacal constellations. ► Enjoy 3D planetarium with the help of special glasses and activating the anaglyph mode. ► Share interesting screenshots of the app with your friends. ► Choose the view mode comfortable for you (orrery/true-to-scale). The app contains In-App Purchases. Solar Walk is a great educational tool appropriate for both adults and children. The amount of information users can learn about the planets, moons, satellites and other celestial bodies is impressive. All information is age-appropriate and detailed. Animated video clips will make learning about our Solar system even more engaging. Start exploring the universe with Solar Walk!
Intergalactic Solar System
Explore planets, moons, and countries in this space simulator mini-game. Learn astronomy and geography aligned with next-generation science standards. Discover the Milky Way galaxy and assess your knowledge through engaging gameplay.
- Planet and moon exploration
- Country geography learning
- Milky Way galaxy view
- Common Core aligned curriculum
- Proficiency assessment
- Engaging gameplay levels
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Intergalactic Education introduces Intergalactic Solar System, a mini-game that teaches about planets, moons, and countries. This space simulator lets you explore celestial bodies from the viewpoint of space itself. The latest edition adds the Milky Way as an observable galaxy. Intergalactic Solar System uses next generation science standards (Common Core aligned) astronomy and geography. (Follows standards ESS1.A, ESS1.B, and CCSS.ELA-LITERACY.RH.6-8.7) Try Intergalactic Solar System! Assess proficiency in Solar System knowledge according to educational standards. Rewarding levels of gameplay maintain engagement. You will forget you were doing astronomy and geography!
Screenshots
Verdict
The clearest difference is price: Intergalactic Solar System at Free against Solar Walk's $4.99. Intergalactic Solar System also leads on update cadence (monthly vs every 5 months) and iOS requirement (13.0 vs 15.0). Solar Walk's advantage is rating (4.7 vs 4.0) and ratings volume (8.1K vs 25). On review sentiment, ads, in-app purchases and monetization model 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
Intergalactic Solar System is free to download; Solar Walk costs $4.99 up front. Solar Walk sells 11 one-off in-app purchases and Intergalactic Solar System sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
Solar Walk holds the better App Store score, 4.7 against 4.0. That said, the two scores are not equally well evidenced: Solar Walk has 8.1K ratings behind it against 25, so its average is the more settled of the two. Written reviews point the same way: 72% of Solar Walk's written reviews are positive against 70% of Intergalactic Solar System's.
Solar Walk ships an update every 5 months, Intergalactic Solar System monthly. The most recent releases landed on September 24, 2026 and September 22, 2026 respectively.
| Parameter | Solar Walk | Intergalactic Solar System |
|---|---|---|
| Price | $4.99 | Free — better |
| Rating | 4.7 (8.1K ratings) — better | 4.0 (25 ratings) |
| Positive reviews | 72.2% of reviews — better | 70.0% of reviews |
| Number of ratings | 8.1K — better | 25 |
| Update frequency | Every 5 months | Monthly — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.0 | 13.0 — better |
| Further details — not scored | ||
| Size | 451 MB | 355 MB |
| Age rating | 4+ | 4+ |
| Developer | Vito Technology Inc. | Intergalactic Education LLC |
Customer experience
Solar Walk
Intergalactic Solar System
Bugs and requests
Solar Walk
Reported bugs
4 issues- App crashes on launch for some users
- In-app purchases not working correctly
- Freezing and performance issues on older devices
- Incorrect planet/moon positioning and timing
Requested features
5 requests- Add more planets, moons, and objects to the solar system
- Expand to include other star systems and galaxies
- Improve navigation and controls for easier exploration
- Offer more free content instead of paid add-ons
- Fix reported bugs and crashes
Intergalactic Solar System
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Solar Walk
- Mission of Cassini-HuygensFree
- Cycles of the Earth SystemFree
- Major Circles of LatitudeFree
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- Movies BundleFree
- 3D Satellites in Real TimeFree
- Planets of the Solar SystemFree
- What is a Solar Eclipse?Free
- The Moon Phases ExplanationFree
- Zodiacal ConstellationsFree
- High Resolution Bundle$1.99
- All Additional Content - Sale$2.99
Intergalactic Solar System
- Access to Full Game$3.99
Questions
Is Solar Walk free?
Is Intergalactic Solar System free?
Which has better reviews, Solar Walk or Intergalactic Solar System?
Do Solar Walk or Intergalactic Solar System have ads?
Which is updated more often, Solar Walk or Intergalactic Solar System?
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