Explain 3D vs Solar System&Celestial Objects
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Explain 3D
Explore the solar system and universe in a 3D environment with realistic models and animations. Learn about planets and spacecrafts, with an option to suggest new simulations. The free version offers basic solar system data, while the full version unlocks more celestial bodies and spacecrafts.
- Interactive 3D environment
- Realistic 3D models and animations
- Planet and spacecraft descriptions
- Engaging educational content
- Suggest simulation tool
- Full version with expanded content
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Explore the solar system and universe with simulations in 3D environment. With Explain3D: Explore the universe, you will have unique chance to explore solar system, planets and most famous spacecrafts in the history of world. Everything is created in amazing 3D environment with realistic 3D models. Start your journey now! FEATURES - interactive 3D environment with complex and realistic 3D models and animations - simple, intuitive, smooth and user friendly interface - description of main parts of planets and spacecrafts - great to make education more engaging and interesting - Want some special simulation? Use "Suggest simulation tool" and we will implement your ideas into application. Free version Real simulation of solar system with planet ecliptic orbits and main information about route, speed and other information. Planets: Sun Spacecrafts: Sputnik 1 FULL version Real simulation of solar system with planet ecliptic orbits and main information about route, speed and other information. Planets: Sun, Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune... Spacecrafts: Apollo, Cassini-Huygens, Galileo, Hubble space telescope, ISS, Pioneer, Sputnik, Vostok, Voyager...
Solar System&Celestial Objects
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Easy learning about solar system, stars, celestial objects, constellations, spacecraft with pictures ,sounds and quiz games. If you who always search and learn a quiz app like these, this app is for you ① Solar system Flash card app. ② Stars Quiz app. ③ Celestial objects quiz app. ④ Stars history and information app. ⑤ Constellations name cards. ⑥ Guess solar system app. Features: - You can learn many kinds of stars. - You can play solar system quiz. - Many information related to solar system, stars, celestial objects, constellations, spacecraft - Support Quiz feature. - Support 5 languages: English, Japanese, Korean, Chinese, Vietnamese
Screenshots
Verdict
The clearest difference is in-app purchases: Solar System&Celestial Objects at none against Explain 3D's 1. Solar System&Celestial Objects also leads on update cadence (every 6 weeks vs every 5 months). Explain 3D's advantage is ads (none vs shown) and iOS requirement (10.0 vs 12.0). On price 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
Both are free to download. Explain 3D sells 1 one-off in-app purchase. Solar System&Celestial Objects asks for nothing beyond the download.
Explain 3D ships an update every 5 months, Solar System&Celestial Objects every 6 weeks. The most recent releases landed on October 13, 2026 and October 18, 2026 respectively.
| Parameter | Explain 3D | Solar System&Celestial Objects |
|---|---|---|
| Price | Free | Free |
| Rating | 2.7 (7 ratings) — better | — |
| Positive reviews | 0.0% of reviews | — |
| Number of ratings | 7 — better | — |
| Update frequency | Every 5 months | Every 6 weeks — better |
| Ads | No — better | Yes |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 10.0 — better | 12.0 |
| Further details — not scored | ||
| Size | 205 MB | 62 MB |
| Age rating | 4+ | 4+ |
| Developer | Explain 3D | NIKI TECH |
In-app purchases
Explain 3D
- Unlock all simulations$3.99
Solar System&Celestial Objects
No in-app purchases
Questions
Is Explain 3D free?
Is Solar System&Celestial Objects free?
Do Explain 3D or Solar System&Celestial Objects have ads?
Which is updated more often, Explain 3D or Solar System&Celestial Objects?
Other comparisons
