On display at Perot Museum and the Charles Schulz Museum and featured by ABC News and NASA's Astronomy Picture of the Day, The Scale of the Universe 2 puts into context how incredibly vast our universe is, with images and commentary for hundreds of objects ranging from enormous to unimaginably small.

What’s New

Version 1.0

This update is signed with Apple’s latest signing certificate. No new features are included.

Ratings and Reviews

4.7 out of 5
89 Ratings

89 Ratings

Carson21056144328567001 ,

Some other Reviews are misleading

First of all, the app is fantastic, and is worth the money. You can learn things that you had no idea about before, and it gives you a perspective that was unachievable. Other review give this app 3 stars because of one minor flaw. And another review gave it one star for rounding certain sizes. Overall a great app I would definitely recommend!

ZepSpecialist ,

Fascinating, but flawed

I tried to find support to contact the developer but there is no option for that. So I’m left to write this review. I love the information of this app but some of the descriptions are cut off. When you tap on an object/planet/etc. there is a short tidbit of info. Most of the time that info is complete. But there are many items where, for whatever reason, the information just stops, even leaving incomplete words, making it obvious there was more there.

Surfer-23 ,

Love it

This app is made by someone who has an appreciation for the topic and actively enjoys communicating his knowledge to people. Well done all around.

I would, however re-check the size of the human. Comparing the relative sizes of the human and the LEM in photos, it seems that the human in the app is too small or the LEM too big. Ditto the elephant (to a lesser extent) and the giant dinosaur.


Michael Huang
21.6 MB

Requires iOS 6.0 or later. Compatible with iPhone, iPad, and iPod touch.



Age Rating


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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