Photo Sketcher
GoldShine
Photo Sketch Maker
Aero Tools
素描師
Android Tools (ru)
Prisma
Prisma Labs, Inc.
Drawify - Pencil Photo Sketch
Waitos AI
Sketch a Day: what to draw
Tom Hicks
Real Sketch
Shush Creative
Sketchbook
概念 - 素描、筆記和畫圖
TopHatch, Inc.
Sketchar: Learn to Draw
Sketchar Inc