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.
Lotame - Make your data actionable, learn about your most valuable customers, improve ROI by targeting the right audience and increase relevance across screens.
Dropbox - Online Sync and File Sharing
Adobe Audience Manager - Adobe Audience Manager is a data management platform that integrates online and offline data to deliver a unified view of all your audiences
Google Drive - Access and sync your files anywhere
Google Audience Center - 3 votes and 6 comments so far on Reddit
Mega - Secure File Storage and collaboration