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.
Wondershare MobileTrans - Wondershare MobileTrans is a 1-Click Phone to Phone Transfer for you to move data between devices with different operating systems. Your must-have phone Transfer.
Dropbox - Online Sync and File Sharing
SynciOS Data Transfer - SynciOS Data Transfer is a mobile app that acts as a third-party alternative to the standard syncing app on the Mac system, which is iTunes.
Google Drive - Access and sync your files anywhere
Jihosoft Phone Transfer - This mobile data transfer application is also called as one click phone to phone data transfer application because of making the process of data transferring really easy and simple for its users.
Mega - Secure File Storage and collaboration