This little boon of a functionality is unknown to many iPhone users, while others seem to be in the dark regarding how set it up and use it. And what is interesting is that Outlook allows iPhone users to sync their calendar events to other devices. Although Apple is known for exclusivity (from the open-source point of view), still Outlook happens to be hugely popular with iOS users. It comes bundled as an integral part of the Microsoft work suite, a platform that enables Microsoft users to efficiently manage the calendar, emails, and contacts.
Outlook is Microsoft’s very own e-mail service.