For hosting common files it's ok. Also it is on Android too do, great to transfer files between your Windows and your phone. But if you want better security you have to subscribe a monthly offer.
VerHost - VerHost is a file sharing platform which has no sign up. Unlimited Uploads and Unlimited Downloads.
Dropbox - Online Sync and File Sharing
Files App - Files is a beautiful single-file PHP file browser and manager that can be dropped into any dir on your server, instantly creating a gallery of files and folders.
Google Drive - Access and sync your files anywhere
Blomp - Are you looking for ubuntu cloud storage? If yes then visit us at Blomp Beta.
Mega - Secure File Storage and collaboration