Microsoft Visual Programming Language - Microsoft VPL is an application development environment designed on a graphical dataflow-based...
FINAL CUT - Library for creating terminal applications with text-based widgets
AppArchitect - AppArchitect is a platform for creating beautiful Mobile Apps.
ncurses - ncurses (new curses) is a programming library that provides an API which allows the programmer to...
Visual Logic - Learning-focused, visual programming tool for Windows.
termbox - Termbox is a library that helps making terminal-based pseudo-GUIs.