SPARC_Rowan vs Real Solar System
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
SPARC_Rowan
Explore the human body's cells and blood circulation with this educational app. Learn about red and white blood cells, platelets, and albumin, along with basic cell structure and principles of force and motion.
- Human body cell education
- Blood circulation simulation
- White blood cell details
- Red blood cell details
- Platelet and albumin information
- Basic cell structure
- Force and motion concepts
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This is an educational app that aims to teach kids about human body cells and blood circulation. It contains white blood cells, red blood cells, platelets, and albumin. Also includes a basic general cell structure, and some "Force and Motion" knowledge
Real Solar System
Explore a realistic solar system simulation using augmented reality. View the orbits of planets and celestial bodies based on real-time data, with adjustable speeds and zoom functions. Discover different objects and learn about their positions in space.
- Realistic AR solar system simulation
- Orbits of 8 planets displayed
- Realistic planet textures
- Planet positions based on real values
- Adjustable speed and zoom
- Changeable celestial objects
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This solar system simulator reflects actual planetary position information. When the app is launched, the sun is positioned 20 cm in front of the device, based on the device's position. Around it, the eight main planets of the solar system and the celestial body to be observed orbit. The orbits are displayed as if they were trajectories. The position of each planet is calculated based on actual values. # Features - x] Realistic solar system with ARKit - x] Orbits of the 8 planets are displayed. - x] Planets are realistic textures imported from USDZ files. - x] Planet positions are calculated based on real values (using Horizons API) - x] The object to be observed can be changed. - x] Display of the orbit of the object of interest - x] Calculate the position of the target object based on actual values (using the Horizons API). - x] Adjustable speed (minus value for reverse rotation) - x] Zoom function (zoom in/zoom out) - x] Toggle the display of the text information and the coordinate axis (New!) ## How to use 1. when you launch the application, you will be asked for "permission to use camera" at the first startup. If you allow it, an ARKit session will start. 2. 2. a coordinate axis will be placed 20 cm in front of you, based on the device's position. 3. Tap the "Load Planet" button to load the planet model. Just wait a moment. 4. The 8 main planets of the solar system and the object to be observed will orbit around it. 5. Move the device to observe the solar system from various angles. 6. Tap the buttons at the bottom of the screen to adjust the speed and zoom. 7. You can change the object to be observed from the menu in the upper right corner of the screen. 1. Halley's Comet 2. Hayabusa2 & Ryugyu 3. Voyager 1 & 2 4. New Horizons & Pluto 5. Cassini (New!) 6. OSIRIS-REx & Bennu 7. Comparison of Circle and Ellipse 8. Geocentric theory (New!) 8. Toggle the display of the text information and the coordinate axis from the menu in the upper right corner of the screen. (New!)
Screenshots
Verdict
The clearest difference is rating: SPARC_Rowan at 5.0 against Real Solar System's 1.0. SPARC_Rowan also leads on update cadence (weekly vs monthly) and ratings volume (3 vs 1). On price, 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
SPARC_Rowan holds the better App Store score, 5.0 against 1.0. Both are backed by a comparable volume of ratings — 3 and 1 respectively.
SPARC_Rowan ships an update weekly, Real Solar System monthly. Both last shipped on October 30, 2026.
| Parameter | SPARC_Rowan | Real Solar System |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (3 ratings) — better | 1.0 (1 ratings) |
| Number of ratings | 3 — better | 1 |
| Update frequency | Weekly — better | Monthly |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPod | iPhone, iPad |
| Requires iOS | 13.0 — better | 17.6 |
| Further details — not scored | ||
| Size | 2.4 GB | 302 MB |
| Age rating | 4+ | 4+ |
| Developer | Ying Tang | Masaya Nagaoka |
In-app purchases
SPARC_Rowan
No in-app purchases
Real Solar System
No in-app purchases
Questions
Is SPARC_Rowan free?
Is Real Solar System free?
Which has better reviews, SPARC_Rowan or Real Solar System?
Do SPARC_Rowan or Real Solar System have ads?
Which is updated more often, SPARC_Rowan or Real Solar System?
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