One of the benefits of being an Amazon Prime member is unlimited cloud storage for photos, as well as 5GB of space for other file types. If you own any of the retailer's Fire devices, too, you get unlimited storage for photos taken with that product, as well as 5 gigs for whatever else. Amazon's latest offer is altogether more simple: For £55 per year, you can get unlimited cloud storage, full stop.
Amazon Drive's unlimited plan first launched in the US last year, not long before iOS and Android apps arrived to make the service a serious competitor to the likes of Dropbox, Google Drive, Box and others. It's also accessible through browsers and dedicated Mac/PC programs. There's no Prime favouritism here -- anyone with an Amazon account can sign up for the £55 yearly unlimited plan, and most will be able take advantage of a three-month free trial to get themselves settled in.