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.
Palo Alto Networks GlobalProtect - GlobalProtect extends NGFW protections to your mobile workforce, no matter where they are.
Dropbox - Online Sync and File Sharing
Symantec Endpoint Protection Mobile - Protect your business from malicious mobile attacks on modern operating systems such as Android and iOS.
Google Drive - Access and sync your files anywhere
BlackBerry Blend - Blackberry Blend is software that seamlessly connects information between a Blackberry mobile device and a desktop PC or a tablet device.
Mega - Secure File Storage and collaboration