Planet Fun vs SpaceOver
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Planet Fun
Explore a 4D solar system simulation with accurate astronomical calculations for planets, moons, and stars. Interact with the celestial bodies using touch gestures, set any date and time, and even view your GPS position in augmented reality.
- 4D solar system simulation
- Configurable animation speed
- Augmented reality mode
- Almanac module with ephemeris calculators
- Touch gesture controls
- Star and constellation visualization
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PlanetFun is a 4D solar system simulation (3D + time) Sun, planets, Moon and star positions are calculated using various astronomical methods. App source code (Delphi Firemonkey) is available at: https://github.com/omarreis/vsop2013 PlanetFun features: * Solar system animation with configurable speed * Set any local date and time * Choose camera target (Sun, planets, etc) * Configurable camera distance-to-target * Touch gestures: one finger pan, two finger zoom, two finger rotation * show planet orbits. Each orbit is represented by 52 dots (for Earth it is one dot per week) * Heliocentric axis (x and z) * VSOP2013 and VSOP87 planet position calculations * Moon positions calculations ELP2000 * Star background image with 42455 stars of the Hipparcos Input Catalogue * Star and constellation lines and names ( a celestial sphere image ) * Constellation drawings ( 31 constellations ) * actual 3D spheres for the 150 brightest stars * Lighthouse on Earth on your GPS position * phone in the scene is positioned according to phone sensors (Azimuth,Elevation,Roll) * click the phone button to enter augmented reality mode. * Almanac module allows exploring the ephemeris calculators (stars, planets, Sun, Moon, Earth) controls: * camera distance and angle of view. * planet scales * local time, time animation speed * control visibility of various interface elements * app uses sensors compass, gyro and GPS - requires permission This app collects no user data.
SpaceOver
Experience a guided space journey using advanced accessibility features like VoiceOver and spatial sound. Explore celestial bodies with interactive 3D models and unique soundscapes, making space travel accessible to everyone.
- AR-guided celestial object location
- Unique music for each astronomical object
- 3D models of celestial bodies
- VoiceOver support for all features
- Spatial sound for location guidance
- Interactive space travel
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SpaceOver uses VoiceOver, spatial sound, haptics, etc. SpaceOver makes it possible for the blind and visually impaired(BVI) to go on a space journey. [Navigation function] - Utilizes the AR function to guide the location of astronomical objects in the solar system based on the current user's location. - Each astronomical object has its unique music, which together creates the harmony of our universe. - You can move your phone to find a specific astronomical object and enjoy the music of that object. [Search function] - You can find the object by selecting the object you want to find. - You can receive guidance on where to go through voice-over, and you can feel the location of celestial bodies through spatial sound. [Astro travel function] - If you find specific astronomical objects, you can travel to those objects. - You can enjoy the appearance of astronomical objects as a 3D model. - You can enjoy the space journey through voice-over and music. [Voice Over] - The VoiceOver function is supported for all aspects of the app so that everyone can travel through space without any trouble. Developed by. Sohyeon Kim, Junhyuk Park, Hyemin Seok, Heeji Sohn, Seik Oh, Yoonyoung Lee, A-young Jo Designed by. A-young Jo Music composed by. Hyemin Seok, A-young Jo
Screenshots
Verdict
The clearest difference is update cadence: Planet Fun at every 4 weeks against SpaceOver's every 5 months. Planet Fun also leads on ratings volume (8 vs 1) and iOS requirement (11.0 vs 15.0). SpaceOver's advantage is rating (5.0 vs 4.8). 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.
SpaceOver holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: Planet Fun has 8 ratings behind it against 1, so its average is the more settled of the two.
Planet Fun ships an update every 4 weeks, SpaceOver every 5 months. The most recent releases landed on June 4, 2026 and June 1, 2026 respectively.
| Parameter | Planet Fun | SpaceOver |
|---|---|---|
| Price | Free | Free |
| Rating | 4.8 (8 ratings) | 5.0 (1 ratings) — better |
| Number of ratings | 8 — better | 1 |
| Update frequency | Every 4 weeks — better | Every 5 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 11.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 161 MB | 95 MB |
| Age rating | 4+ | 4+ |
| Developer | Omar reis | Hyemin Seok |
Customer experience
Planet Fun
SpaceOver
In-app purchases
Planet Fun
No in-app purchases
SpaceOver
No in-app purchases









