I love the super simple direction of the Square App home page. It’s deceptively simple in that there’s one thing they want you to do, signup. But it’s done with a slideshow that loads in different signup options with each type of product and it’s a slick way to deliver it. There’s so few elements here yet so much visual depth, superb design and superb call to action to boot.
Fitts’s Law: Why the Easy Button Wins
Large, close targets are faster to hit than small, distant ones, that’s Fitts’s Law. A look at the 1954 rule behind buttons, prime and magic pixels, thumb zones, and dark patterns.
This site is obviously inspired by Apple, especially if you compare the iPad features page (http://www.apple.com/ipad/features/) to The Square Reader page (https://squareup.com/square). I think this is smart since Square relies on a device like the iPad, and the visual connection allows them to co-opt some of Apple’s mojo.