The range of size in the universe, from the tiniest particles to the epic galaxies - we take you on a journey of size that let’s you explore it all with a single swipe. How big is a planet, compared to a human? And how small is an atom really? You can’t fully wrap your head around the scope of things by just reading about them – so this app lets you experience them in comparison to get a feeling for their true scale. By simply swiping you can zoom in and out all the way from the world of fundamental particles up to the largest stars at the edge of the observable universe.

Seamless zooming between the scales of 10^-35 meters to 10^26 meters (no math required)

Amazing fun facts for various scale levels, like the smallest bacterium and the largest black hole

Tap any object for an explanation of what it is and how it works

Beautifully animated illustration of more than 250 objects

Original Kurzgesagt music to complement your experience

What’s New

Version v1.0.4

- Content Updates
- User Interface Updates
- Bug Fixing

Ratings and Reviews

5.0 out of 5
16 Ratings

16 Ratings

_smartpluguser ,

One of the best apps I’ve had in a long time.

So informative, intuitive and just so much fun to play with and educate. Expected nothing less from my favorite YT channel :)

Sicelo Jones ,

Really fun and fascinating app

This is such a cool way to gain perspective on how big or small things are in relation to one another, highly recommend for a fun deep dive into science !!!

Mr Gecko73 ,

Personal review

This is a brilliant app and I think many people should get it.


In a nutshell - kurzgesagt GmbH
260.9 MB

Requires iOS 11.0 or later. Compatible with iPhone, iPad and iPod touch.



Age Rating


  • Family Sharing

    Up to six family members will be able to use this app with Family Sharing enabled.

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