In Short

OneDrive is Microsoft's online cloud storage product. It was previously called SkyDrive, but was rebranded in early 2014. OneDrive offers 15 GB of free storage to anyone with a Microsoft account, but can purchase additional storage. Users who subscribe to Office 365 gain 1 TB of OneDrive storage that they can use across all their Microsoft products.

OneDrive is built into Windows 8.1 and available as an app on Windows Phone, Windows, Xbox, iOS, Android and the web. With OneDrive, users can store photos, documents, videos and all file types to the service. Files up to 2 GB in size can be uploaded to OneDrive.

Users can gain 3 GB of extra storage when using their platform specific OneDrive mobile app and enabling photo sync.

OneDrive for Windows Phone is available for free in the Windows Phone Store. The app is not bundled with the operating system like Windows 8.1 and must be downloaded separately. However, users can have their photos, videos and settings synced with their OneDrive account.