Gumroad is not a good platform I purchased plugin from them. VERTEXTURE One day suddenly they blocked one of its parts I mailed them so many times, but they failed to give satisfactory reply. After a year or two years when I just enquired about update, they suddenly blocked that part also. Many mails to them but no satisfactory answer, either they called me cheater. I asked gul to solve the matter, but nothing happened. So never go to gul in future.