# SPACE by THIX vs Universe Size Comparison

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.

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.

## The numbers

| Metric | SPACE by THIX | Universe Size Comparison |
| --- | --- | --- |
| Price | $2.99 | **$1.99** |
| Rating | **[3.7 (169 ratings)](https://appshunter.io/ios/app/space-by-thix/id1053605807/reviews)** | [3.2 (30 ratings)](https://appshunter.io/ios/app/universe-size-comparison/id1473946290/reviews) |
| Number of ratings | **169** | 30 |
| Positive reviews | 50.5% of reviews | **70.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 3 months |
| Monetization | Paid | Paid |
| Size | 106 MB | 411 MB |
| Requires iOS | **10.0** | 17.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Apple TV |
| Age rating | 4+ | +4 |
| Developer | [THIX LLC](https://appshunter.io/developer/433373206) | [Daniele Citi](https://appshunter.io/developer/1187632258) |

## What reviewers say

### SPACE by THIX

[App page](https://appshunter.io/ios/app/space-by-thix/id1053605807)

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:** macOS Compatibility, Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 🌟 Cool and fun to play with
- 🌌 Relaxing and immersive space experience
- 🎨 Beautiful graphics and visuals

**What reviewers complain about**

- 🐛 Buggy and glitchy behavior
- 🔍 Difficulty seeing and interacting with small objects
- 🤔 Lack of clear instructions or tutorials
- 🕹️ Frustrating controls and navigation

**Reported bugs**

- 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**

- 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

[App page](https://appshunter.io/ios/app/universe-size-comparison/id1473946290)

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.

**Highlights:** 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

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is SPACE by THIX free?

SPACE by THIX costs $2.99, with no in-app purchases.

### Is Universe Size Comparison free?

Universe Size Comparison costs $1.99, with no in-app purchases.

### Which has better reviews, SPACE by THIX or Universe Size Comparison?

SPACE by THIX is rated higher. SPACE by THIX averages 3.7 out of 5 from 169 ratings, while Universe Size Comparison averages 3.2 from 30 ratings.

### Do SPACE by THIX or Universe Size Comparison have ads?

Neither SPACE by THIX nor Universe Size Comparison shows ads.

### Which is updated more often, SPACE by THIX or Universe Size Comparison?

SPACE by THIX ships an update every 2 months, and Universe Size Comparison every 3 months. Most recently, SPACE by THIX was updated on November 6, 2026 and Universe Size Comparison on November 3, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*