There are tons of to-do list managers out there, but Any.do is one of the best. It's easy to use, nice to look at, and quickly syncs to-dos across all of your devices. It also offers features like sharing, reminders, and folders. Beyond that, Any.do has a bunch of really cool extras, like turning your emails into tasks, sending quick text messages, and reminding you to return missed calls. We caught up with Omer Perchik, Any.do's founder and CEO, to find out the story behind one of our favorite apps.