Almost perfect ….

This software is doing exactly what is expect, sync and encrypt your files before sending them to your cloud repository.

I have only one problem with the choice of the encryption.
You can choose between AES256, but this is a proprietary format which is only readable through the software ! .. Not really useful when you went to get your files back on a windows machine for example.

The other format, zip with encrypt seems more Universal, since it can be open on a windows machine but this format is known to be weak since it relies on Unix zip utility.

Hope the development team will soon adopt a 7zip AES256 encryption soon ! which could make this the perfect soft.

Sebastien Beal about Crypt Sync Files, v1.2