Expresii is described as 'advanced digital painting system' and is an app in the Photos & Graphics category. There are more than 25 alternatives to Expresii for a variety of platforms, including Windows, Mac, iPad, Android and iPhone. The best alternative is Krita, which is both free and Open Source. Other great apps like Expresii are MyPaint (Free, Open Source), Clip Studio Paint (Paid), PaintTool SAI (Paid) and Tayasui Sketches (Freemium).
Krita is a professional Free and open source (FOSS) painting program. It is made by artists that want to see affordable art tools for everyone withith concept art, texture and matte painters, illustrations and comics.
MyPaint is a fast painting program with an emphasis on full-screen use. It lets you focus on the art instead of the program. You work on your canvas with minimum distractions, bringing up the interface only when you need it.
PaintTool SAI is high quality and lightweight painting software, fully digitizer support, amazing anti-aliased paintings, provide easy and stable operation, this software make digital art more enjoyable and comfortable. Details: - Fully digitizer support with pressure.
Sketches is a perfect mix of beauty, simplicity and power, a truly unique combination you won't find anywhere else. Sketches is the ideal canvas, perfect for getting down ideas, illustrations, painting, anything your creative mind can imagine.
Corel Painter is a raster-based digital art application created to simulate as accurately as possible the appearance and behavior of traditional media associated with drawing, painting, and printmaking.