No specific info about version 15.9. Please visit the main page of Pencil Sketch Pro on Mac Informer.
This application helps you edit your favorite pictures.
Turn your digital photographs into pencil sketches or watercolor paintings.
Among the top 10 Mac apps in Top Grossing list of photography category in the US...
This program helps you turn your photos into paintings.
Most advanced automatic pencil sketch generator in the world, but very easy to use and super fast.