Google is the best app to manage your growing photo and media library. Google's photo backup service is free, but the storage isn't. You get 15GB of storage shared across your Google account. You'll exhaust this space in no time if you click a lot of pictures and videos using one of the best camera phones. You can pay for additional storage or back up your photos and videos to a Synology NAS. You don't need to pay for a subscription for a Synology Photos, as it bundled with your enclosure.