Clutter rolled out last year as a tool that learned the emails that are less important to you and put them in a separate folder. This functionality very much added an extra “junk mail” style folder. For a number of months Microsoft have been trialling new functionality on a selection of mobile platforms (iOS and Android) – Focused. Using the same idea as clutter Focused learns the difference between important and “other” emails, giving you direction on the important emails in your inbox.