#6989
MyPaint is a free and open-source painting program developed by Martin Renold from Switzerland in 2005. It has garnered a dedicated following among digital artists, illustrators, and hobbyists alike, primarily due to its focus on simplicity and ease of use.

#5880
TwistedBrush Pro Studio is a powerful and easy-to-use digital art painting software, also one of the best of its kind with a high popularity. It aims to provide the most convenient and efficient digital painting experience for the majority of digital painters and artists. In short, its design is simple without sacrificing quality, powerful enough for professional artists, and so easy to use even beginners can get started quickly.