InstantPhotoSketch converts a photo into a picture looking like pencil sketch. 3 Effects are supported - Pen, Pencil and Color Pencil. The last two contain watermark which can be removed with a small 1-time fee(pay once and save all images without watermarks)

You can:

Open the picture from gallery or take it with camera.

Immediately convert it to sketch.

Save a sketch to gallery.

Share it using different methods.