His version may be leaked / cracked or contains viruses , so buy it at your own risk and don't cry later .
Its not the one you pointed too + i am going to upload virustotal results soon.
If you have the screenshots of the ripper you are saying just share it i will verify that its not the one i am selling.
a GUI doesn't proof anything at all , anyone can make a fake GUI using different IDE's or other softwares .
If you want , I can take a vouch copy and verify that the software works fine etc ... (Note that I have no use for your software because I already bought the one I spoke about above so it's just to see how legit is this) .