The platform is very intuitive and flexible: to create a Yoyo, all you have to do is copy and paste the URL of a GIF, a Vine, or even a Tumblr post that contains a GIF. The resulting screen will show you the possible Yoyos based on that content and ask you to pick which you'd like to create. The rest of the platform functions much like Vine—you can follow other Yoyo users, like their posts, and share any Yoyos they create on your own timeline.
Source: Fast Company - http://www.fastcodesign.com/3042742/this-new-app-turns-gifs-...