As per [1] from below - Apparently it's a nag-based paid software with an otherwise restricted feature set. This is not clearly explained on the page. In fact, it looks like the site goes out of its way to try and pass for free software - the Demo is NOT of what you are actually downloading, no pricing info, no mention of Basic vs Full versions anywhere, including the Docs, except for an dull looking blurb at the ver…
> Add username and password to protect your Files app by login. You can encrypt your password by using our md5() hash tool if you don't want the password to be exposed in the PHP file.
Now I realize it's probably not using md5, but it does not bode well.