Space by Tinybop vs Universe Size Comparison
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Space by Tinybop
Explore our solar system and visit each planet up close. Discover their surfaces, characteristics, and orbits through interactive play. Test atmospheres, gravity, and observe planetary spins and seasons.
- Visit 8 planets and the sun
- Study planet surfaces up close
- Discover planet characteristics
- Test atmospheres and gravity with meteorites
- Compare planet sizes and masses
- Observe planetary orbits and moon phases
- Explore Mars with rovers and chopper
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Travel into space and visit tiny Mercury, fierce Venus, friendly Earth, dusty Mars, stormy Jupiter, elegant Saturn, hazy Uranus, and mysterious Neptune. Perfect for future astronomers everywhere. "Space should more accurately be called "Hands On With the Solar System." — Children's Technology Review *** KAPi Best App for Older Children *** *** Children's Technology Review Editor's Choice *** Hurl meteorites through the atmosphere. Spin around the sun and zoom onto its surface. Jump into a whirling space storm. Boldly go where no kid has gone before in 3, 2, 1…. liftoff! Space is No.8 in Tinybop’s award-winning Explorer’s Library. Kids can discover new worlds in other Explorer’s Library apps, including The Human Body, Plants, Simple Machines, The Earth, Weather, Homes, and Skyscrapers. FEATURES + Visit 8 planets and the sun! + Study the surface of each planet and the sun up close. + Discover the characteristics of each planet with a helpful snowman. + Throw meteorites at each planet to test their atmospheres and gravity. + See how big and massive each planet and the sun are by comparing them side-by-side. + Play with and observe each planet’s orbit around the sun. + Follow the moon’s orbit to discover the phases of the moon. + See how quickly or slowly each planet spins on its axis and how long each day is. + Peek inside each planet’s rocky crust or gassy outer layer. + Move the Earth’s axis to see how it affects seasons. + Explore Mars’ rocky surface with NASA’s Curiosity, Pathfinder rovers. + Fly the Ingenuity Chopper on Mars. + Experience wild weather and more on Venus. + Find out why Mercury has so many craters. + See what Saturn’s rings are made of and make them spin. + Discover diamonds on Neptune and Uranus. + Interactive text labels in 50+ languages teach vocabulary. + FREE Space Handbook has technology tips and basic info for teachers and parents. + Original artwork by Jessie Sattler. + Original sound design. + Open-ended activities with no rules. Curiosity and creativity are rewarded. + Multi-user system. + Fun for all ages. + No third-party advertising. FREE handbook Our expert-reviewed handbook is full of facts, interaction hints, and discussion questions to support learning in this app, in the classroom, or at home. Download in your app or at: http://tinybop.com/handbooks. Privacy Policy We take your and your child’s privacy very seriously. We do not collect or share personal information about your child, nor do we allow any third-party advertising. When the camera, microphone, and other services are used within an app, your information is neither collected nor distributed outside of the app. Read our complete privacy policy at tinybop.com. Tinybop, Inc. is a Brooklyn-based studio of designers, engineers, and artists. We make toys for tomorrow. We’re all over the internet. Visit us: www.tinybop.com Follow us: twitter.com/tinybop Like us: facebook.com/tinybop Peek behind the scenes: instagram.com/tinybop We love hearing your stories! If you have ideas, or something isn’t working as you expect it to, please contact us: hi@tinybop.com. Psst! It's not Tiny Bop, or Tiny Bob, or Tiny Pop. It's Tinybop. :)
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 Tinybop at 4.3 against Universe Size Comparison's 3.1. Space by Tinybop also leads on iOS requirement (12.0 vs 17.0). Universe Size Comparison's advantage is price ($1.99 vs $3.99). On review sentiment, ratings volume, update cadence and ads 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 Tinybop costs $3.99 and Universe Size Comparison $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Space by Tinybop holds the better App Store score, 4.3 against 3.1. Both are backed by a comparable volume of ratings — 72 and 29 respectively. Written reviews complicate that: 67% of Space by Tinybop'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 Tinybop ships an update every 6 months, Universe Size Comparison every 4 months. The most recent releases landed on October 21, 2026 and October 9, 2026 respectively.
| Parameter | Space by Tinybop | Universe Size Comparison |
|---|---|---|
| Price | $3.99 | $1.99 — better |
| Rating | 4.3 (72 ratings) — better | 3.1 (29 ratings) |
| Positive reviews | 66.7% of reviews | 70.0% of reviews — better |
| Number of ratings | 72 — better | 29 |
| Update frequency | Every 6 months | Every 4 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Paid |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Apple TV |
| Requires iOS | 12.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 255 MB | 413 MB |
| Age rating | 4+ | +4 |
| Developer | Tinybop Inc. | Daniele Citi |
Customer experience
Space by Tinybop
Universe Size Comparison
In-app purchases
Space by Tinybop
No in-app purchases
Universe Size Comparison
No in-app purchases
Questions
Is Space by Tinybop free?
Is Universe Size Comparison free?
Which has better reviews, Space by Tinybop or Universe Size Comparison?
Do Space by Tinybop or Universe Size Comparison have ads?
Which is updated more often, Space by Tinybop or Universe Size Comparison?
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