Popular Science magazine, your first stop in what's new and what's next in technology, has teamed up with Megatouch Games to create the ultimate find-the-difference game for science and tech fans!

Available exclusively on iPad, Popular Science Photo Hunt® HD features hundreds of magazine covers and spectacular photos spanning over 100 years of Popular Science history.

See why millions of people are hooked on the original find-the-difference photo game from Megatouch. Playing is easy! Simply find 5 differences between the two photos before time runs out.

It's not rocket science, just lots of fun.