Windows Phone users miss out on two of the most popular cloud storage apps, Dropbox and Google Drive. Sure, you could always just secure your phone with a lock screen, but we like that the Dropbox app on Android offers another level of security, in case someone happens to get hold of your device. The only thing we found missing from OneDrive was a password-protection feature. What's also worth noting is that Office's mobile editing interface is significantly simpler than Google Drive's, especially when it comes to spreadsheets. And of course, all of your changes, once saved, are propagated to the cloud. Thus, it's a seamless transition between viewing your files in OneDrive to editing Word documents, PowerPoint presentations, and Excel spreadsheets. On Windows Phone, that is not the case, since OneDrive is so tightly integrated with the OS's built-in Office app. Altogether, it's a simple interface that looks as good as it functions. A quick swipe in either direction brings up pages for Recent and Shared files, while the ever-present, though not at all intrusive, toolbar gives you options to create a folder and move, search, add, and share files. Open up the OneDrive app on your Windows Phone device and you'll see a sleek, minimalist interface, displaying all of your files and folders in either a list or a tiled layout. The app is free to download, and users get 7GB of free storage to start. That's because OneDrive features are baked into the Windows Phone operating system, and with the app, saving, editing, organizing, and sharing files in OneDrive is seamless. The OneDrive app for Windows Phone is the best mobile version of the service available. Like competitors Dropbox and Google Drive, OneDrive keeps the files you store in it safe in case your phone is lost or your computer hard drive fails. Microsoft's cloud storage service OneDrive gives you a place to store photos, videos, documents, and other files in the cloud, so you can access them from anywhere, on any of your devices, regardless of the platform they're running.