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.
Gilisoft USB Stick Encryption - Gilisoft USB Stick Encryption is a USB encryption system by the Gilisoft that is known for delivering the password protection and encryption system for the PC drives.
Dropbox - Online Sync and File Sharing
VeraCrypt - VeraCrypt is a free open source disk encryption software for Windows, Mac OSX and Linux.
Google Drive - Access and sync your files anywhere
USBCrypt - USBCrypt is the name of a highly advanced encryption software that delivers the two-step verification system to the USB holders to protect their data from unauthorized and unwanted access.
Mega - Secure File Storage and collaboration