What is CryFS?
CryFS encrypts your files, so you can safely store them anywhere. It works well together with cloud services like Dropbox, iCloud, OneDrive and others. The goal of CryFS is not only to keep file contents, but also file sizes, metadata and directory structure confidential.
Comments and Reviews
Said about CryFS as an alternative
CryFS also has Windows support but it is experimental and requires Dokany to be installed. Still works fine.