Comparison

SPACE by THIX vs Planet Fun

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

SPACE by THIX

Create and explore your own universe with realistic physics. Build celestial bodies, experiment with natural laws, and journey through the cosmos you design. Learn astronomy and astrophysics through interactive play.

Highlights
  • Create celestial bodies (planets, stars, black holes)
  • Experiment with gravity and natural laws
  • Simulate supernovae and planetary collisions
  • Interactive real-time physics
  • Explore created universes
  • Learn astronomy and astrophysics
Features
Read full description

* Best of 2016 – Apple * Create your own universe. Play with the law of nature. Visit the outer worlds. Build asteroids, nebula, comets, planets, moons, stars, pulsars and even blackholes at your fingertips. Experiment with gravity, supernova, planetary collision and so forth. Zoom in to ride comets. Zoom out to gaze at the galaxy of stars. S C I E N C E D R I V E N Learn Astronomy and Astrophysics for fun and creativity. All celestial bodies you create can move and interact in real-time and in accordance with the Newtonian astrophysics laws. C E L E S T I A L T O U C H Move planets with your fingers. Swipe to shoot a comet. Play with your own universe in an astronomical scale. SPACE puts gigantic celestial bodies under your fingertips. C O S M I C V O Y A G E Meditate in the indescribable beauty of space that you create, anywhere and anytime. Hold your device to view the universe in from any angle. Visit us: thix.co
 Like us: facebook.com/thixlab 
Follow us: twitter.com/thixlab Comments or Questions: support@thixlab.com

About

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.

Highlights
  • 4D solar system simulation
  • Configurable animation speed
  • Augmented reality mode
  • Almanac module with ephemeris calculators
  • Touch gesture controls
  • Star and constellation visualization
Features
Read full description

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.

Screenshots

SPACE by THIX4 screens
Planet Fun4 screens

Verdict

The call

The clearest difference is price: Planet Fun at Free against SPACE by THIX's $2.99. Planet Fun also leads on rating (4.8 vs 3.7) and update cadence (every 4 weeks vs every 2 months). SPACE by THIX's advantage is ratings volume (169 vs 8). On ads, in-app purchases, device support and iOS requirement 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

CostPrice · In-app purchases · Ads · Monetization

Planet Fun is free to download; SPACE by THIX costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Planet Fun holds the better App Store score, 4.8 against 3.7. That said, the two scores are not equally well evidenced: SPACE by THIX has 169 ratings behind it against 8, so its average is the more settled of the two.

UpkeepUpdate frequency

SPACE by THIX ships an update every 2 months, Planet Fun every 4 weeks. The most recent releases landed on September 23, 2026 and June 4, 2026 respectively.

Scorecard5 real differences · 5 level
SPACE by THIX versus Planet Fun: the parameters behind the verdict, then further details
ParameterSPACE by THIXPlanet Fun
Price$2.99Free — better
Rating3.7 (169 ratings)4.8 (8 ratings) — better
Positive reviews50.5% of reviews—
Number of ratings169 — better8
Update frequencyEvery 2 monthsEvery 4 weeks — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaidFree — better
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS10.0 — better11.0
Further details — not scored
Size106 MB161 MB
Age rating4+4+
DeveloperTHIX LLCOmar reis

Customer experience

SPACE by THIX

All ratings169 ratings
Positive66.3%
Neutral13.0%
Negative20.7%
Written reviews212 reviews
Positive50.5%
Neutral17.9%
Negative31.6%

Planet Fun

All ratings8 ratings
Positive87.5%
Neutral12.5%
Negative0.0%

Bugs and requests

SPACE by THIX

Reported bugs

4 issues
  • Planets and objects behaving erratically or disappearing
  • Frequent crashes or freezes, especially with many objects
  • Inconsistent or unresponsive touch controls
  • Incorrect physics or behavior of certain celestial bodies

Requested features

5 requests
  • Add ability to customize and edit planets
  • Implement time controls to speed up/slow down simulation
  • Provide more celestial objects and phenomena to interact with
  • Improve performance and reduce lag on complex scenes
  • Include a tutorial or in-game guidance for new players

Planet Fun

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

SPACE by THIX

No in-app purchases

None

Planet Fun

No in-app purchases

Questions

Is SPACE by THIX free?
SPACE by THIX costs $2.99, with no in-app purchases.
Is Planet Fun free?
Planet Fun is free to download, with no in-app purchases.
Which has better reviews, SPACE by THIX or Planet Fun?
Planet Fun is rated higher. SPACE by THIX averages 3.7 out of 5 from 169 ratings, while Planet Fun averages 4.8 from 8 ratings.
Do SPACE by THIX or Planet Fun have ads?
Neither SPACE by THIX nor Planet Fun shows ads.
Which is updated more often, SPACE by THIX or Planet Fun?
SPACE by THIX ships an update every 2 months, and Planet Fun every 4 weeks. Most recently, SPACE by THIX was updated on September 23, 2026 and Planet Fun on June 4, 2026.

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