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
What an amazing app. It’s beautiful, intuitive, packed full of information and so engaging. I spent hours reading just about everything. The range is from the smallest named unit of measurement to the observable universe. I hope updates come with new things to learn about and compare. The music and voice over can be turned on or off (default is on) and you can choose from five accents in English. You can change the text size and units of measurement (imperial, metric or powers of ten). No ads, no in-app purchases, no subscriptions, always a plus. Running iOS 15 and so far, no bugs. I had lots of fun comparing the average woman (about my height) too crazy sizes like zeptometers. I had never heard of a zeptometer, but I have now. If you like learning this is a great app to add to your purchases. I absolutely recommend it.
Developer Response
Thank you for such a comprehensive review! We just released v3.0 with 39 new objects and 5 new articles. We hope you will keep enjoying the app.
Please Add
The App Explorer Guy
Would You Like More Continents, Countrys, States, Or Distances Like Proxima Centauri Or Andormeda Galaxy? Also Thanks For Feedback On My Moms Phone Since I’m Not A Adult. (Not Telling You My Age). Also Titanic! (And Other Ships).2:Why Did You Not Add VY Canis Majoris!Remember When I Told You To Add VY Canis Majoris? It’s Update 3.0 And…. No VY Canis Majoris! And My Requests! Anyway Like The Subatomic Particles. Thanks For That! Also: Happy Update 3.0. Happy Update 3.0. Like Your App… Is 3 Years Old!. 3: More Stuff. I Want More Stuff! Probably Asteroids Under 1 km, Meteorites, Stars, Galaxies, Clusters, And More. (If You Don’t Add These Stuff I Understand That They Come In Later Updates.) See Ya
Developer Response
Thank you for your review and your suggestions.Many moons and other solar system bodies will come this year, it’s in our plan.Sorry, our previous response wasn't clear, but we added VY Canis Majoris and the distances to Próxima Centauri and Andromeda to the list for future updates. In v3.0, we were mostly focused on elementary particles.
Easy & phenomenal
Aceraceae
3rd review April 2024. Great app and after several years, I am still using it to gain perspective and increase my understanding. 2nd review 2021. It is hard to explain how great this app is. On my first review more than a year ago, I thought it was phenomenal. After longer experience, I find it even better. Wow! I like the way I can compare sizes, eg, a whale shark and an African elephant. Try it on Apple TV on a big screen TV for an even better appreciation of the immense variation of sizes. This app gives one an appreciation for the scale of the universe from the tiniest particles to the largest immensity.
Developer Response
Thank you very much for your feedback!
Can ya add more? (And some object subtitle suggestions)
Let God Be Yo Saviour
Can you add some things like: - Sombrero Galaxy (a flat galaxy)- Apple (one of the most well-known fruits)- Banana - Planet X (a hypothetical planet in the outskirts of our solar system) *can also be called Planet 9Other dwarf planets:- Orcus (nicknamed the “Anti-Pluto”- Eris (the most massive but second largest dwarf planet)- Haumea (one of the most odd dwarf planets)- Makemake (used to be called “Easter Bunny”)- Gonggong (used to be called “Snow White”)- Sedna (one of the farthest dwarf planets)- Quaoar (has a ring system and one moon)Your app is really good nonetheless!Sorry I had to edit again:There’s something in space that’s located 14 million light years away called Cloud 9. Astronomers think it’s a failed galaxy. It’s pinkish-purple in colour and mostly made of gas and dark matter. It is estimated to be about 4,900 light years across.
Developer Response
Thank you for the 5 stars and your suggestions as always!
Version 3.0 is our biggest expansion of the Physics part of the app yet.
• A whole new kind of object — point particles like quarks, leptons and bosons. Having no measurable size, they stay put as you zoom instead of growing or shrinking.
• 39 objects added or significantly improved — point particles, plus more atomic nuclei and atoms, and a handful of larger objects too.
• Particle physics is a tricky topic, so we added 5 short articles that explain it in a simple, easy-to-follow way — with many more articles to come.
• We improved the information for many objects, refreshed the images for several of them, and polished translations and voice-over pronunciation.
• We fine-tuned the soundtrack volume based on your feedback.
Thank you for your continued feedback — it truly helps make Universal Zoom better with every update!
Version 3.0
The developer, GamifyIt, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Privacy practices may vary, for example, based on the features you use or your age. Learn More
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
Seller
GamifyIt
Size
183.8 MB
Category
Education
Compatibility
Requires iOS 15.5 or later.
iPhone Requires iOS 15.5 or later.
iPad Requires iPadOS 15.5 or later.
iPod touch Requires iOS 15.5 or later.
Mac Requires macOS 12.4 or later and a Mac with Apple M1 chip or later.
