Image: Nicholas Deleon
Google Photos now goes one helpful step further in its efforts to be your primary photo backup service.Available Tuesday for Android, Google Photos now has a handy "Free Up Space" button that, when pressed, will delete all the photos from your smartphone that have already been backed up to Google's cloud. And don't worry: the app will ask you to "double-confirm" whether or not you actually want to delete your photos.One quick note before you transfer all of your photos to Google: While you're able to store an unlimited number of photos with Google Photos, Google does slightly degrade their quality (which Google still calls "High quality") to save space on its servers.Google Photos launched back in May for both Android and iOS, and by October reached 100 million users. Google in October said that, behind people, food is the most commonly photographed subject, with dogs being the most commonly photographed animal. Paris, New York, and Barcelona are the top three most photographed cities.Amazon also offers free unlimited cloud photo storage for Amazon Prime members, while Dropbox and Apple (iCloud) offer several gigabytes of storage for a fee.