Comparison

Universal Zoom vs The Earth by Tinybop

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

Head to head
About

Universal Zoom

Explore the universe's vastness and intricacy through interactive visual comparisons. Seamlessly zoom from subatomic particles to the observable universe, gaining intuition about scale and size with stunning imagery and clear explanations.

Highlights
  • Seamless zooming across scales
  • Visual comparisons of objects
  • Jargon-free scientific explanations
  • Audio narration
  • Over 270 objects presented to scale
  • Multi-language support
Features
Read full description

The universe is endlessly vast. A single atom is impossibly small. And somewhere between those two extremes lies everything that has ever existed. We believe that feeling — the electric, spine-tingling sense of scale — belongs to everyone. Not just scientists. Not just students. Everyone. That's why we built Universal Zoom. WHAT YOU CAN DO • Zoom seamlessly from the Planck length to the edge of the observable universe — about 300 objects presented to perfect scale. • Compare any two objects side by side: how many Earths fit inside Jupiter? How does a virus measure up against a skyscraper? Instant, visual, intuitive. (No other scale app lets you do this.) • Go deeper with audio narration and short, accessible explanations — the facts that matter, in plain language. WHAT YOU'LL EXPLORE • Elementary particles — quarks, leptons, and bosons. Atomic nuclei, atoms, and DNA. Living cells. Animals and landmarks. Planets, stars, and galaxies. A deep dive into physics, biology, and astronomy — with short, plain-language articles that make even particle physics easy to grasp — in 40 languages, with metric, imperial, or powers-of-ten units. • Real high-resolution photos and electron microscope images, where possible. Original artwork for things that can't be photographed — like elementary particles and DNA structures. • No ads. No in-app purchases. Pure discovery. BUILT WITH YOU We're a team of two (Andrey and Oksana) from Canada who have poured a decade into this app because we genuinely love science. Most objects come from community suggestions — carefully fact-checked and updated with every new discovery. Over 200 more are already in the queue. FOR EDUCATORS Used by teachers worldwide to visualize scale, build measurement intuition, and turn abstract numbers into "aha" moments. Available at 50% off for schools via Apple School Manager (20+ copies). FOLLOW THE JOURNEY Sneak peeks and upcoming additions: @gamifyitapps on X, YouTube, and TikTok. Feedback and ideas: gamifyitapps.com/contact

About

The Earth by Tinybop

Explore geology and ecology with an interactive Earth model. Kids can simulate geological forces, witness landform creation, and learn about conservation through hands-on activities. Develop foundational science literacy through engaging STEM exploration.

Highlights
  • Interactive Earth model
  • Simulate geological forces
  • Explore Earth's layers
  • Shape landforms
  • Learn conservation
  • Discover fossils
  • Experiment with volcanoes
Features
Read full description

This app is for all junior geologists. ***** Children's Technology Review Editor's Choice ***** The Earth is an interactive model that lets kids study geology and ecology. Kids explore and play with the geological forces that change the Earth—above and below the surface, in minutes and over millions of years. Kids can also learn about conservation as they test clean energy sources, clean up beaches, and preserve forests. The Earth is No. 5 in Tinybop’s Explorer’s Library. Each Explorer’s Library app lets kids explore the invisible and awesome wonders of STEM. Kids (and kids at heart!) develop foundational science literacy. "This is a great way to let children informally and playfully discover some of the big ideas they’ll encounter later on in their school curriculum. Apps like this one are good reminders for why you spent hundreds of dollars on a phone or tablet for your child." — Warren Buckleitner, editor, Children's Technology Review Features: * Investigate how landforms are created. * See the Earth transform over time, from a sphere of boiling rock to the continents we live on today. * Dig under the surface and observe the Earth’s layers from the crust to core. * Weather, erode, and deposit rocks and sediment. Shape the land with your fingertips! * Make a river meander. Make a glacier recede and advance. Create sand dunes, sea stacks, and beaches. Trigger a rockslide! * Discover fossils as you investigate rock formations. * See how plants weather the Earth by making your own garden. * Discover mysteries like frost wedging, stalactites and stalagmites, and hotspots. * Experiment with four different types of volcanoes. * Earth Day ecology bonus interactions about conservation: test clean energy sources, clean up beaches, and preserve forests. * Learn new vocabulary in 40+ languages with interactive labels in close-up scenes. * Original artwork by Sarah Jacoby. * Intuitive, safe, and kid-friendly design. * Entertaining for kids and adults alike — play together and learn together! FREE handbook Our expert-reviewed handbook is full of facts, interaction tips, 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 seriously. We do not collect or share personal information about your child. We do not allow any third-party advertising. When the camera, microphone, and other services are used within an app, your information is not collected or 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 apps for curious, creative, and kind kids. 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. :)

Screenshots

Universal Zoom4 screens
The Earth by Tinybop4 screens

Verdict

The call

The clearest difference is review sentiment: Universal Zoom at 97% against The Earth by Tinybop's 45%. Universal Zoom also leads on rating (4.8 vs 4.3) and ratings volume (365 vs 81). The Earth by Tinybop's advantage is price ($3.99 vs $5.99) and iOS requirement (9.0 vs 15.5). 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

CostPrice · In-app purchases · Ads · Monetization

Universal Zoom costs $5.99 and The Earth by Tinybop $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Universal Zoom holds the better App Store score, 4.8 against 4.3. Both are backed by a comparable volume of ratings — 365 and 81 respectively. Written reviews point the same way: 97% of Universal Zoom's written reviews are positive against 45% of The Earth by Tinybop's.

UpkeepUpdate frequency

Universal Zoom ships an update every 4 months, The Earth by Tinybop every 3 months. Both last shipped on November 1, 2026.

Scorecard5 real differences · 5 level
Universal Zoom versus The Earth by Tinybop: the parameters behind the verdict, then further details
ParameterUniversal ZoomThe Earth by Tinybop
Price$5.99$3.99 — better
Rating4.8 (365 ratings) — better4.3 (81 ratings)
Positive reviews96.7% of reviews — better45.5% of reviews
Number of ratings365 — better81
Update frequencyEvery 4 monthsEvery 3 months — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaidPaid
DevicesiPhone, iPad, iPod, Apple TV — betteriPhone, iPad, iPod
Requires iOS15.59.0 — better
Further details — not scored
Size175 MB400 MB
Age rating4+4+
DeveloperGamifyItTinybop Inc.

Customer experience

Universal Zoom

All ratings356 ratings
Positive95.5%
Neutral2.0%
Negative2.5%
Written reviews389 reviews
Positive96.7%
Neutral1.5%
Negative1.8%

The Earth by Tinybop

All ratings81 ratings
Positive79.0%
Neutral9.9%
Negative11.1%
Written reviews222 reviews
Positive45.5%
Neutral9.0%
Negative45.5%

User reviews

Universal Zoom

From 365 App Store ratings

What we love

  • 👍 Fascinating and informative
  • 🚀 Smooth and seamless experience
  • 💡 Puts things into perspective
  • 👍 Great learning tool for all ages
  • 👍 Visually appealing and well-designed

Room to improve

  • 🐛 Occasional bugs and crashes
  • 🔋 High battery consumption
  • 🔇 Background music could be improved

The Earth by Tinybop

From 81 App Store ratings

What we love

  • 🎨 Beautiful, detailed graphics and art style
  • 🧠 Educational content about Earth's geology and natural processes
  • 🎮 Interactive exploration mechanics with engaging animations
  • 🌍 Comprehensive coverage of Earth science topics (volcanoes, earthquakes, layers, etc.)
  • 👨‍👩‍👧‍👦 Appeals to wide age range from young children to teenagers

Room to improve

  • ❓ Lacks clear instructions and tutorials for navigation
  • ⏱️ Limited content with quick completion time (5-30 minutes)
  • 🐛 Frequent crashes and freezing issues
  • 😕 Not intuitive for users to understand what to do
  • 🎯 No clear objectives or goals provided

Bugs and requests

Universal Zoom

Reported bugs

3 issues
  • Incorrect information for some objects
  • Compatibility issues on older devices
  • Typos and minor errors in text

Requested features

5 requests
  • Add more objects and comparisons
  • Customizable object feature
  • Support for more languages
  • Ability to toggle between metric and imperial units
  • Search and filtering options

The Earth by Tinybop

Reported bugs

10 issues
  • App crashes frequently on various iOS devices
  • Screen freezes and becomes unresponsive
  • Phone crashes to Apple logo on some devices
  • Blank white screen on launch
  • Incompatibility with iPhone 4 and older iOS versions
Show 5 more
  • Layout issues on smaller screens (SE model) with cut-off text
  • Slow performance and glitchy animations
  • Payment window pops up repeatedly and requires device reboot
  • Buttons and controls not functioning properly
  • Issues with timeline feature not being fully functional

Requested features

10 requests
  • Tutorial or guided learning instructions for new users
  • Ability to explore Earth's timeline and early stages properly
  • Space exploration feature to complement Earth exploration
  • More interactive structures and objects to manipulate
  • Mariana Trench addition with marine life details
Show 5 more
  • Persistent changes to landscape after events (earthquakes, volcanoes)
  • Summary information explaining what children are learning
  • More content and activities to extend gameplay duration
  • Visibility of volcano hole in X-ray view
  • Additional Tinybop app integrations

In-app purchases

None

Universal Zoom

No in-app purchases

None

The Earth by Tinybop

No in-app purchases

Questions

Is Universal Zoom free?
Universal Zoom costs $5.99, with no in-app purchases.
Is The Earth by Tinybop free?
The Earth by Tinybop costs $3.99, with no in-app purchases.
Which has better reviews, Universal Zoom or The Earth by Tinybop?
Universal Zoom is rated higher. Universal Zoom averages 4.8 out of 5 from 365 ratings, while The Earth by Tinybop averages 4.3 from 81 ratings.
Do Universal Zoom or The Earth by Tinybop have ads?
Neither Universal Zoom nor The Earth by Tinybop shows ads.
Which is updated more often, Universal Zoom or The Earth by Tinybop?
Universal Zoom ships an update every 4 months, and The Earth by Tinybop every 3 months. Most recently, Universal Zoom was updated on November 1, 2026 and The Earth by Tinybop on November 1, 2026.

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