Any storage you buy for Google Drive also goes towards other Google services including Gmail and Google+ Photos. So for less than $10, you can reserve enough space to back up your entire mobile photo library and then some. Or, using Google's own example, choosing the terabyte option would allow you "to take a selfie twice a day for the next 200 years and still have room left over." If you somehow need more than that, tiers offering 10TB and up start at $99. Google is undercutting Dropbox significantly with the move; 100GB of Dropbox storage runs $9.99 per month, while 500GB is priced at $49.99. The price changes are effective immediately and you can purchase one of the storage plans here.