Venture capital firm MOOR, the majority owner in Angry Birds creator Rovio, has backed a new email startup. Teller, a Swedish-based apps company, has designed a tool to make it easier to manage the email inbox. The app uses algorithms to automatically sort emails by their importance based on the user's past behavior. The app is currently available on Macs and mobile devices. Unlike other email inbox tools, the app doesn't divide different messages into different folders, it simply makes more important emails rise to the top of the folder based on the user.