SPACE by THIX vs Universe Size Comparison
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- 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
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* 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
Universe Size Comparison
Explore the vastness of space and understand celestial body dimensions through interactive 3D comparisons. Discover the scale of planets and stars, from our Sun to hypergiant stars, with guided tours and free comparison modes.
- 3D astronomical comparisons
- Tour Mode with guided explanations
- Free Mode for custom comparisons
- Scale comparisons of planets and stars
- Detailed celestial body information
- Elegant user interface
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Universe Size Comparison is a unique 3D astronomical app that will make you understand the real dimensions of the universe and how small we are. Have you ever wondered how big the Sun is compared to Earth? Or what is the largest planet between Mars and Earth? Do you want to find out the dimensions of some of the most famous stars in the sky like Rigel and Betelgeuse in comparison to our Sun? Do you want to compare everything with the hypergiant star VY Canis Majoris? Universe Size Comparison is the right app for you. The app offers two modes: Tour Mode and Free Mode. Tour mode will guide you on a spectacular journey where you will see planets and stars compared in full scale. All accompanied by simple and clear explanations regardless of the level of knowledge of the subject. The Free mode will allow you to compare two celestial bodies of your choice in scale. You will also find out more information on the bodies you are comparing thanks to an elegant user interface designed to offer the maximum user experience.
Screenshots
Verdict
The clearest difference is rating: SPACE by THIX at 3.7 against Universe Size Comparison's 3.2. SPACE by THIX also leads on ratings volume (169 vs 30) and iOS requirement (10.0 vs 17.0). Universe Size Comparison's advantage is review sentiment (70% vs 50%) and price ($1.99 vs $2.99). On update cadence, 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
SPACE by THIX costs $2.99 and Universe Size Comparison $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.
SPACE by THIX holds the better App Store score, 3.7 against 3.2. That said, the two scores are not equally well evidenced: SPACE by THIX has 169 ratings behind it against 30, so its average is the more settled of the two. Written reviews complicate that: 50% of SPACE by THIX's written reviews are positive against 70% of Universe Size Comparison's, so the app with the better star average is not the one people write more warmly about.
SPACE by THIX ships an update every 2 months, Universe Size Comparison every 3 months. The most recent releases landed on November 6, 2026 and November 3, 2026 respectively.
| Parameter | SPACE by THIX | Universe Size Comparison |
|---|---|---|
| Price | $2.99 | $1.99 — better |
| Rating | 3.7 (169 ratings) — better | 3.2 (30 ratings) |
| Positive reviews | 50.5% of reviews | 70.0% of reviews — better |
| Number of ratings | 169 — better | 30 |
| Update frequency | Every 2 months — better | Every 3 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Paid |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Apple TV |
| Requires iOS | 10.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 106 MB | 411 MB |
| Age rating | 4+ | +4 |
| Developer | THIX LLC | Daniele Citi |
Customer experience
SPACE by THIX
Universe Size Comparison
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
Universe Size Comparison
Not enough reviews yet to summarise bugs or requests.
In-app purchases
SPACE by THIX
No in-app purchases
Universe Size Comparison
No in-app purchases
Questions
Is SPACE by THIX free?
Is Universe Size Comparison free?
Which has better reviews, SPACE by THIX or Universe Size Comparison?
Do SPACE by THIX or Universe Size Comparison have ads?
Which is updated more often, SPACE by THIX or Universe Size Comparison?
Other comparisons
