Try Amazon Photos for Additional Cloud Backup of Your Pics

You should always back up your photos to the cloud, and many people use Google Photos. However, it is highly recommended to be prepared with a 2nd or 3rd backup in case something happens to your Google account. If you have Amazon Prime, use their unlimited uploading feature to back up your phone's pictures using Amazon's Photos app. As a Prime user, you also get to store full resolution versions of your photos, unlike Google (though limited to 5 gigabytes of video storage).