Google, Microsoft and Dropbox all compete in the 100GB space, with the best deal going to Google Drive at $1.99 per month. But for 200GB you'll get the best price per gigabyte from Apple's new iCloud pricing structure, which will run you $3.99 per month.Google and Dropbox don't offer options in this size range.Once you get to the 1TB range, you get much more business-focused plans.ropbox could be great -- 16GB beats everyone -- but to get all that space you'll need to refer 28 other people to try Dropbox. Apple offers a 20GB option of cloud storage. So if that is your sweet spot it will cost you $0.99 per month.