What are some alternatives?
When comparing asciiflow and InsightPoint, you can also consider the following products
Charaster - Open-source ASCII art editor for browser-based, raster-style editing
sK1 - Home of the sK1 2.0 (ex.PrintDesign) vector graphics editor and UniConvertor
Playscii - Full-featured ASCII art and graphic editor and game creation tool
Inkscape - Inkscape is a free, open source professional vector graphics editor for Windows, Mac OS X and Linux.
Ascii Generator 2 - Ascii Generator 2 (Ascgen2) is an application to convert images into high quality ASCII art - text...
Karbon - Karbon is the scalable vector drawing application in KDE.