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.
MOBILedit! Forensic - MOBILedit! Forensic is the world's most trusted phone investigation tool.
Dropbox - Online Sync and File Sharing
MOBILedit! - Software used by millions of users for phone content management, data transfer and investigation.
Google Drive - Access and sync your files anywhere
AirDroid - Access Android phone/tablet from computer remotely and securely. Manage SMS, files, photos and videos, WhatsApp, Line, WeChat and more on computer.
Mega - Secure File Storage and collaboration