has Universal Zoom: All About Sizes and Distances
(iOS) for Free
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Editor's Notes & Price Research
Universal Zoom is an app that explores the universe by presenting objects to scale from sub atomic particles to the observable Universe and everything in between. Have fun comparing any two objects.
Apple iTunes [apple.com]
has Universal Zoom: All About Sizes and Distances (iOS) for Free. Normally $4.
Available for iPad, iPhone, and Apple TV. Last time free was 2017 FP deal +135