Real Solar System vs Sun Light Hours
Price, ratings, monetisation and update history for both apps, side by side โ with what reviewers say about each.
Real Solar System
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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!)
Sun Light Hours
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- This shows daylight hours in any latitude on any given day - You can also see some information about each planet in our solar system
Screenshots
Verdict
The clearest difference is in-app purchases: Real Solar System at none against Sun Light Hours's 7. Real Solar System also leads on ads (none vs shown). Sun Light Hours's advantage is update cadence (every 3 days vs monthly). On price, device support and iOS requirement there is nothing between them.
Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS
Both are free to download. Sun Light Hours sells 7 one-off in-app purchases. Real Solar System asks for nothing beyond the download.
Real Solar System ships an update monthly, Sun Light Hours every 3 days. The most recent releases landed on September 20, 2026 and September 14, 2026 respectively.
| Parameter | Real Solar System | Sun Light Hours |
|---|---|---|
| Price | Free | Free |
| Update frequency | Monthly | Every 3 days โ better |
| Ads | No โ better | Yes |
| In-app purchases | No โ better | Yes |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 17.6 | 16.6 โ better |
| Further details โ not scored | ||
| Size | 302 MB | 43 MB |
| Age rating | 4+ | 17+ |
| Developer | Masaya Nagaoka | NovaNext |
In-app purchases
Real Solar System
No in-app purchases
Sun Light Hours
- Coffee$0.99
- Remove Ads$0.99
- Donate $3$2.99
Show 4 moreShow fewer
- Donate $5$4.99
- Donate $10$9.99
- Donate $15$14.99
- Donate $20$19.99
Questions
Is Real Solar System free?
Is Sun Light Hours free?
Do Real Solar System or Sun Light Hours have ads?
Which is updated more often, Real Solar System or Sun Light Hours?
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