Solar System 3D vs Encyclopedia
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Solar System 3D
Explore our solar system in stunning 3D. Navigate through planets, moons, and celestial bodies, accessing detailed Wikipedia information. Experience realistic simulations of Earth's seasons, day-night cycles, and planetary motion.
- 3D space navigation
- Full solar system model
- Wikipedia information
- Spinning and orbiting simulation
- Earth's seasonal tilt
- Day-night simulation
- Real scale factors
Read full descriptionHide full description
Solar System 3D is an educational application for anyone interested in our amazing space. Take a journey to our solar system with this app now. Features: - 3D space navigation - Entire solar system with the Sun, 8 major planets and the Moon. - Wikipedia information about each astro - Timer setting with speed up options to learn the spinning and orbiting basics of the solar system - Fantastic simulation of the Earth's seasonal tilt degree and day-night simulation based on your device global location. - Fair clouds, ambient night view and atmosphere simulation for our planet Earth. - Real scale factor on the planet size, spin/orbit speed and distance to sun. In-app purchases: - No Ads - HD Texture and 3D solid surface with shadow projection - Convenient Wallpaper screenshot button to hide the menus and freeze the space from your favorite solar system angle
Encyclopedia
Explore the solar system with extensive articles and high-definition images. This app offers comprehensive information, engaging content, and a user-friendly interface, making it suitable for both children and adults interested in space.
- Thousands of articles and HD photos
- Comprehensive solar system information
- Engaging and easy-to-understand content
- Offline availability
- Badge collection for reading
- Intuitive user interface
Read full descriptionHide full description
Explore 386 illustrated articles about planets, moons, dwarf planets, asteroids, comets, astronomy, missions, discoveries, and the science of our solar system. Search article titles and full text, open clear article pages, and follow linked topics without losing your place. Reading progress and themed badges help you build a path through the collection. Explore the solar system from several angles: - Timeline view follows discoveries, missions, scientists, and changing ideas. - Graph view reveals relationships between worlds, spacecraft, people, and concepts. - Map view adds geographic context for observatories, discoveries, and missions where source material provides it. - References and image credits keep source attribution visible. Thirty articles are free to read. A one-time purchase unlocks the complete encyclopedia for offline reading, including maps, timelines, and graphs. Monthly or annual Premium includes the complete encyclopedia plus AI chat, with a seven-day free trial for eligible new subscribers. People who bought the original Full Version can restore permanent offline encyclopedia access; AI chat remains a separate Premium feature. AI chat answers grounded questions about the solar system and links back to relevant articles so you can continue reading and check the context. Article text is adapted from Wikipedia contributors under Creative Commons Attribution-ShareAlike 4.0. Every article includes source, revision-history, and image-credit links. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is update cadence: Solar System 3D at every 2 weeks against Encyclopedia's every 62 months. Solar System 3D also leads on iOS requirement (4.3 vs 15.0). Encyclopedia's advantage is review sentiment (83% vs 68%). On price, rating, ratings volume and ads 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. Solar System 3D sells 4 one-off in-app purchases and Encyclopedia sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
Encyclopedia holds the better App Store score, 3.8 against 3.6. Both are backed by a comparable volume of ratings — 32 and 14 respectively. Written reviews point the same way: 68% of Solar System 3D's written reviews are positive against 83% of Encyclopedia's.
Solar System 3D ships an update every 2 weeks, Encyclopedia every 62 months. The most recent releases landed on September 29, 2026 and September 17, 2026 respectively.
| Parameter | Solar System 3D | Encyclopedia |
|---|---|---|
| Price | Free | Free |
| Rating | 3.6 (32 ratings) | 3.8 (14 ratings) — better |
| Positive reviews | 67.9% of reviews | 83.3% of reviews — better |
| Number of ratings | 32 — better | 14 |
| Update frequency | Every 2 weeks — better | Every 62 months |
| 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 | 4.3 — better | 15.0 |
| Further details — not scored | ||
| Size | 54 MB | 322 MB |
| Age rating | 4+ | 4+ |
| Developer | ZHIREN GUAN | Good Spider, LLC |
Customer experience
Solar System 3D
Encyclopedia
In-app purchases
Solar System 3D
- Remove Ads$0.99
- High Definition Texture$0.99
- Wallpaper Screenshot$0.99
Show 1 moreShow fewer
- Special Package Offer$0.99
Encyclopedia
- Full Version$2.99
Questions
Is Solar System 3D free?
Is Encyclopedia free?
Which has better reviews, Solar System 3D or Encyclopedia?
Do Solar System 3D or Encyclopedia have ads?
Which is updated more often, Solar System 3D or Encyclopedia?
Other comparisons
