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.
Numi App - Numi is a beautiful text calculator for Mac.
MyPaint - MyPaint is a fast, distraction-free, and easy painting tool for digital artists.
SpeedCrunch - SpeedCrunch. SpeedCrunch is a high-precision scientific calculator featuring a fast, keyboard-driven user interface. It is free and open-source software, licensed under the GPL. Download Documentation Donate .
GIMP - GIMP is a multiplatform photo manipulation tool.
Qalculate! - Qalculate! is a multiplatform multi-purpose desktop calculator.