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.
Net Nanny - The best parental control and web filtering software. Complete visibility and control over your child's online activity. Sign up today to start.
Dropbox - Online Sync and File Sharing
Norton Family - Symantec provides security products and solutions to protect small, medium, and enterprise businesses from advanced threats, malware, and other cyber attacks.
Google Drive - Access and sync your files anywhere
Covenant Eyes - Covenant Eyes has been around for over two decades, and was originally designed as a way for people to overcome the lure and accessibility of pornography on the Internet. Read more about Covenant Eyes.
Mega - Secure File Storage and collaboration