V1.4.1 was released in the MAS 11/4/17.
There's a download link on the dev's site, but it downloads v1.3.1 which displays this message when used: "You should launch v.1.1 or later from the App Store before use this version."
I had no intention of keeping this app, just installed to see if the download was free.
I use Path Finder and there's an icon in its toolbar to delete files without sending to Trash, so no need for this app.