jPicEdt is described as 'open source, multi-platform and interactive vector drawing picture editor for LaTeX and PSTricks' and is an app in the Photos & Graphics category. There are more than 10 alternatives to jPicEdt for a variety of platforms, including Mac, Windows, Linux, Windows S and Android Tablet. The best alternative is Inkscape, which is both free and Open Source. Other great apps like jPicEdt are Apache OpenOffice Draw (Free, Open Source), Vector Paint (Free Personal), Bloom (Paid) and EvolveUI (Free).
Ludigraphix is a geometry oriented vector drawing software where shapes are defined by points that can be shared with other shapes. This allow you to build complex shapes that can be manipulated in a lot of different ways.