Krita - Krita is a professional FREE and open source painting program. It is made by artists that want to seaffordable art tools for everyone. Concept art. texture and matte painters, illustrations and comics.
Pigment by ShapeFactory - A unique way to explore color using lighting and pigment
MediBang Paint - The official site for MediBang Paint, the free digital painting and manga creation software. You can download the latest version of MediBang Paint here, and get news and tutorials.
ibis Paint X - Drawn with + ibisPaint
Corel Painter - Corel Painter is media painting software.
Kdan Mobile Animation Desk - Achieve your dream of creating your own animation.