Microsoft launched an Outlook app for rival handsets running on Apple's iOS and Google's Android, ramping up its software services efforts. The move will allow users of iPhones, iPads and Android-powered smartphones and tablets to more easily access the email service popular with many businesses. "The new app brings together the core tools you need to get things done - your email, calendar, contacts and files - helping you get more done even on the smallest screen," Microsoft said. Microsoft under chief executive Satya Nadella has been making moves to adapt to the new mobile landscape, with fewer customers using PCs.