What was once known as SkyDrive by Microsoft is now called OneDrive. However, the different name is not the only new feature introduced, and thanks to a few tricks and mobile apps, OneDrive is an efficient and updated version of its predecessor. Microsoft's online backup and syncing service is the most flexible and all-encompassing of its class, with syncing and access apps not only for PCs, but also for Macs, Androids, iOS, and Windows Phones. By comparison, Apple's competing iCloud is only available for Apple devices.