There are exceptional, free and inexpensive applications out there. Some are coming through open source programmers, some have limitations on use but still enable the Save and Print functions, and some are only available to teachers and some students.
Free Mac program: http://www.gimp.org/downloads/
Free Windows program: http://www.gimp.org/downloads/
Free Mac program: http://www.blender.org/download/get-blender/
Free Windows program: http://www.blender.org/download/get-blender/
Paid Mac program: https://www.eazydraw.com/store.htm
Website: http://pixlr.com/editor/
Google Chrome app: https://chrome.google.com/webstore/detail/pixlr-editor/icmaknaampgiegkcjlimdiidlhopknpk
Free Windows program: http://livecode.com/
Free Mac program: http://livecode.com/