Free storage: Up to 10 GB
This service includes 2 GB free, with an extra 8 GB free for downloading the company's Apple or Android App. Beyond that, priced options start at 20 GB for $2.99/month; 500 GB is $39.99/month. An ad-free version of viewing photos is $0.99. Photobucket also specializes in printing photos on calendars, mugs, pillows, etc. so be prepared for a lot of ads for that when using their service.
More information: Photobucket