Comparison

Solar System vs GPT Solar System Explorer

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

Head to head
About

Solar System

Explore planets, dwarf planets, and moons in your own space using augmented reality. Walk around the solar system, view celestial bodies in scale, and access detailed information about each planet and its moons.

Highlights
  • Augmented reality solar system view
  • Explore planets, dwarf planets, and moons
  • Scale mode for size and distance comparison
  • Detailed planet and moon information
  • Interactive exploration
Features
Read full description

Place the Sun on your table or on the floor and walk among the planets in augmented reality. Get close to Saturn's rings, look at Jupiter's moons from below, or find out how far away Pluto really is when the Sun is one metre wide. THREE WAYS TO SEE IT • Learn: everything fits in one room, so you can see every planet at once. • To scale: the planets' sizes are true to each other. Earth is 4 cm, Jupiter 45 cm, and Neptune is 30 metres from the Sun. • Real scale: everything to the same scale. Earth is a 9 mm marble 107 m away; Pluto is more than 4 km from you. Follow the labels to find them. WHERE THE PLANETS ARE TODAY Every planet starts at its real position in its orbit. Speed up time to watch the years pass, or tap Today to come back. REAL PHYSICS • Orbits with their true tilt: Pluto 17°, Eris 44° • Axes that always point the same way, which is what makes the seasons • Moons that always show the same face to their planet • Triton orbiting backwards, and Io, Europa and Ganymede in their 1:2:4 dance • Haumea, the dwarf planet shaped like a rugby ball 21 WORLDS The Sun, the eight planets, five dwarf planets and seven moons. Each one has a fact sheet with NASA figures — diameter, distance, length of the day and the year, temperature, gravity, moons, who discovered it — a size comparison with Earth and a surprising fact. Great for school, for curious minds of every age, and for anyone who has wondered how big space really is. Augmented reality needs an iPhone or iPad with ARKit. On other devices the app opens in 3D mode.

About

GPT Solar System Explorer

Explore our Solar System in an interactive 3D environment powered by AI. Discover stunning images and videos from space agencies, and ask your AI guide anything about the cosmos. Perfect for curious minds of all ages.

Highlights
  • Interactive 3D Solar System model
  • AI-powered cosmic guide
  • NASA, SpaceX, ESA imagery & videos
  • Planet and mission details
  • Voice-activated Q&A
  • Intuitive controls for all ages
Features
Read full description

Get ready for an out-of-this-world experience. This interactive 3D space app, powered by advanced AI, brings the wonders of our Solar System to life. Discover breathtaking images and videos from NASA, SpaceX, Roscosmos, the Chinese Space Agency, ESA, and more. Fly from planet to planet, explore the Moon and Sun, and get up close with stunning space photography and footage. The intuitive controls make space exploration easy for both kids and adults. Touch down on any planet and choose from the menu:  - About the Planet – Learn about its structure, atmosphere, and unique features.  - Photos & Videos – Browse exclusive images of spacecraft, planetary landscapes, and historic space missions. - Missions – Discover lunar and Mars rovers, deep-space probes, and Elon Musk’s vision for colonizing Mars using Starships and more Meet your cosmic AI space guide. Curious about black holes? Wondering how astronauts live in space? Just tap the mic button in the lower-right corner and ask anything. Your AI guide holds vast knowledge of the cosmos and adapts to your preferred style, whether you want a simple explanation or a deep scientific breakdown. Download now and embark on a space journey with your AI companion! *** This app offers auto-renewable subscriptions for one month and one year. Your subscription renews automatically 24 hours before the current period ends. You can cancel anytime in your device settings. For details, please review our Privacy Policy: https://kidify.games/privacy-policy/ and Terms of Use: https://kidify.games/terms-of-use/

Screenshots

Solar System4 screens
GPT Solar System Explorer4 screens

Verdict

The call

The clearest difference is review sentiment: Solar System at 67% against GPT Solar System Explorer's 0%. Solar System also leads on in-app purchases (none vs 5). GPT Solar System Explorer's advantage is rating (4.7 vs 3.8) and update cadence (every 2 weeks vs every 107 months). 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. GPT Solar System Explorer sells 5 in-app purchases, starting at $5.99 per month. Solar System asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

GPT Solar System Explorer holds the better App Store score, 4.7 against 3.8. Both are backed by a comparable volume of ratings — 32 and 96 respectively. Written reviews complicate that: 67% of Solar System's written reviews are positive against 0% of GPT Solar System Explorer's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

Solar System ships an update every 107 months, GPT Solar System Explorer every 2 weeks. The most recent releases landed on November 2, 2026 and November 4, 2026 respectively.

Scorecard7 real differences · 3 level
Solar System versus GPT Solar System Explorer: the parameters behind the verdict, then further details
ParameterSolar SystemGPT Solar System Explorer
PriceFreeFree
Rating3.8 (32 ratings)4.7 (96 ratings) — better
Positive reviews66.7% of reviews — better0.0% of reviews
Number of ratings3296 — better
Update frequencyEvery 107 monthsEvery 2 weeks — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterSubscription
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS17.015.0 — better
Further details — not scored
Size12 MB288 MB
Age rating4+4+
DeveloperLuis Carvajal HoyosApic Ways

Customer experience

Solar System

All ratings29 ratings
Positive62.1%
Neutral6.9%
Negative31.0%
Written reviews6 reviews
Positive66.7%
Neutral0.0%
Negative33.3%

GPT Solar System Explorer

All ratings90 ratings
Positive92.2%
Neutral1.1%
Negative6.7%
Written reviews1 reviews
Positive0.0%
Neutral100.0%
Negative0.0%

In-app purchases

None

Solar System

No in-app purchases

5 purchases

GPT Solar System Explorer

Subscriptions4
  • Monthly Pro Subscription$5.991 Month
  • Monthly Super Pro Subscription$19.991 Month
  • Monthly Ultra Pro Subscription$29.991 Month
Show 1 more
  • Yearly Pro Subscription$39.991 Year
One-time1
  • AI coins$5.99

Questions

Is Solar System free?
Solar System is free to download, with no in-app purchases.
Is GPT Solar System Explorer free?
GPT Solar System Explorer is free to download, with in-app purchases available.
Which has better reviews, Solar System or GPT Solar System Explorer?
GPT Solar System Explorer is rated higher. Solar System averages 3.8 out of 5 from 32 ratings, while GPT Solar System Explorer averages 4.7 from 96 ratings.
Do Solar System or GPT Solar System Explorer have ads?
Neither Solar System nor GPT Solar System Explorer shows ads.
Which is updated more often, Solar System or GPT Solar System Explorer?
Solar System ships an update every 107 months, and GPT Solar System Explorer every 2 weeks. Most recently, Solar System was updated on November 2, 2026 and GPT Solar System Explorer on November 4, 2026.

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