Good app but license won’t last long – Artisto – Video and Photo Editor with Art Filters Review

Love this app!! BUT a problem with licensing. I paid for the Pro Version to have the watermark removed from my image. After a month using it, the watermark is back and I can’t get it remove unless I make another purchase. I sent a few emails to the developer for help and get no response at all.
Review by S buyer on Artisto – Video and Photo Editor with Art Filters.