| | iCloud | Dropbox | SugarSync | SkyDrive | | Free allowance | 5 GB | 2-18 GB | 5-32 GB | 7 GB | | 10 GB | $20 | | | - | | 20 GB | $20 | | | $10 | | 30 GB | |
| $50 |
| | 50 GB | $50 | | | $25 | | 60 GB | | | $100 | | | 100 GB | | $100 | $150 | $50 | | 200 GB | | $200 | | | | 500 GB | | $500 | | | | Flatforms | All Apple devices; Windows (limited) | Win XP+; Mac 10.5+; Android, iOS | Win XP+; Mac OS X; All mobile | Win 7+; Mac OS 10.7+; Windows Phone; Android; iOS | | Features | Entire profile | | Multiple folders, selectable per device | | | | | | | | | Extras | Find my iPhone, Find my Mac, Back to my Mac, @me.com Email, iOS Backups in the cloud | Sharing; share by link; public folder; photo gallery; add-ons | Secure upload (TLS) and storage (128 nibt AES); sharing; public sharing; folder permissions; email by link; photo albums; stream music; | WebApps for MS Office; File Sharing | | Sys. Req. | OS X 10.7 | | | | | | | | | |
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