Universe Size Comparison vs Interactive Minds
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
Interactive Minds
An interactive science book exploring the universe with stunning visuals and detailed facts. It covers a wide range of astronomical topics, from stars to galactic superclusters, designed for young learners.
- Interactive science book format
- Stunning photos and videos
- Universe simulations
- Covers stars, galaxies, nebulae, and more
- Kid-friendly design for ages 11+
- No ads or in-app purchases
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Explore the universe with stunning photos, videos, simulations, and facts! This interactive science book contains 37 pages, 78 hi-res fullscreen images, and covers topics ranging from stars to galactic superclusters. ----- TOPICS COVERED ----- Delve deep into stars, galaxies, nebulae, and more with this carefully curated look at astronomical topics: • Sights of the night sky • The universe today • Galaxies • Galaxy types (spiral, elliptical, etc.) • Nebulae • Stellar nurseries • Stars • Main-sequence stars (red dwarf, yellow dwarf, blue dwarf, etc.) • Star lifecycles (protostar, main-sequence, giant, etc.) • Dead and dying stars (supernovae, white dwarf, neutron star, black hole, etc.) • Solar systems (plus simulations of nearby solar systems including our own) • Globular clusters • Galaxy clusters • Superclusters • The cosmic web • Formation of the universe ----- KID FRIENDLY ----- Augment your child's school or home-school education with this in-depth look at outer space! • Made for an 11+ audience • Easy to use page navigation and search • NO ads • NO in-app purchases ----- NOT CONVINCED? ----- Try before you buy with "The Universe (Lite)" ----- LEARN MORE ----- Discover more with our other app: Interactive Minds Solar System
Screenshots
Verdict
The clearest difference is rating: Interactive Minds at 5.0 against Universe Size Comparison's 3.2. Interactive Minds also leads on review sentiment (100% vs 70%) and update cadence (every 4 days vs every 3 months). Universe Size Comparison's advantage is price ($1.99 vs $5.99) and device support (3 vs 1). On 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
Universe Size Comparison costs $1.99 and Interactive Minds $5.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Interactive Minds holds the better App Store score, 5.0 against 3.2. Both are backed by a comparable volume of ratings — 30 and 9 respectively. Written reviews point the same way: 70% of Universe Size Comparison's written reviews are positive against 100% of Interactive Minds's.
Universe Size Comparison ships an update every 3 months, Interactive Minds every 4 days. The most recent releases landed on October 29, 2026 and October 10, 2026 respectively.
| Parameter | Universe Size Comparison | Interactive Minds |
|---|---|---|
| Price | $1.99 — better | $5.99 |
| Rating | 3.2 (30 ratings) | 5.0 (9 ratings) — better |
| Positive reviews | 70.0% of reviews | 100.0% of reviews — better |
| Number of ratings | 30 — better | 9 |
| Update frequency | Every 3 months | Every 4 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Paid |
| Devices | iPhone, iPad, Apple TV — better | iPad |
| Requires iOS | 17.0 | 8.0 — better |
| Further details — not scored | ||
| Size | 411 MB | 176 MB |
| Age rating | +4 | 4+ |
| Developer | Daniele Citi | Vosonos LLC |
Customer experience
Universe Size Comparison
Interactive Minds
In-app purchases
Universe Size Comparison
No in-app purchases
Interactive Minds
No in-app purchases
Questions
Is Universe Size Comparison free?
Is Interactive Minds free?
Which has better reviews, Universe Size Comparison or Interactive Minds?
Do Universe Size Comparison or Interactive Minds have ads?
Which is updated more often, Universe Size Comparison or Interactive Minds?
Other comparisons
