Microsoft has reportedly closed a deal to acquire popular iOS calendar app Sunrise for "at least" $100 million as the software giant continues to invest in rival mobile platforms under CEO Satya Nadella.
Sunrise would be Microsoft's second acquisition in the mobile productivity space in recent months after it purchased iOS email app Accompli for over $200 million last December. The Sunrise deal was first reported by TechCrunch.
Microsoft's plans for Sunrise are unclear, though the publication believes that Sunrise will survive as a standalone product while lending some technology to other Microsoft groups. Accompli, which was recently relaunched as Outlook for iOS, also includes calendaring functionality.
In addition to the iOS client, Sunrise is also available on the web and the Mac App Store. Sunrise is one of the most popular third-party calendaring solutions on iOS, with a 4.5-star rating from over 2,300 App Store reviews at press time.
After years of essentially ignoring iOS, Microsoft has embraced Apple's platform since Nadella's arrival. Notably, the company finally released the long-awaited Office for iPad suite in March of last year and has steadily worked to improve it in the months following its debut.