Pattern for signing contracts on mobile

A cool pattern we came up with at Accordium was the Turn Key, inspired by the "swipe to unlock" feature on the iPhone.

We wanted to come up with an easier way to sign contracts that works both on mobile and desktop.

For a signature to be legally valid, it needs to demonstrate:

– Identity (taken care of by the email)
– Intention (that's why the shape is more of a horseshoe than a straight line, so it takes a little more effort)
– Awareness (taken care of the "Confirm" button)