Microsoft on the Lookout for More Mobile-Productivity App Acquisitions

Microsoft Corp. Chief Executive Officer Satya Nadella has a new strategy to make the company a purveyor of popular mobile applications: Acquire them.

The software company is planning over the next few months to buy mobile-productivity applications that work on Apple Inc. and Google Inc. operating systems, according to people familiar with the situation. The plans follow Microsoft’s two deals for app makers over the past three months -- the acquisition on Wednesday of calendar-apps company Sunrise Atelier Inc. and the purchase of e-mail software startup Acompli Inc. in December.