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.
Klio - Digital art on your wall. Art evolving.
Dropbox - Online Sync and File Sharing
Aura Frame - A smart picture frame for your family
Google Drive - Access and sync your files anywhere
Idea Paint - Create a usable, interactive space on any flat surface
Mega - Secure File Storage and collaboration