Kdbg is described as 'KDbg is a graphical user interface to gdb, the GNU debugger.It provides an intuitive interface for setting breakpoints,inspecting variables, and stepping through code' and is an app in the Development category. There are eight alternatives to Kdbg for a variety of platforms, including Linux, Windows, Mac, Microsoft Visual Studio and BSD. The best alternative is GNU Data Display Debugger, which is both free and Open Source. Other great apps like Kdbg are Nemiver (Free, Open Source), VisualGDB (Paid), wingdb (Paid) and GDBFrontend (Free).
DDD is a graphical front-end for command-line debuggers such as GDB, DBX, WDB, Ladebug, JDB, XDB, the Perl debugger, the bash debugger bashdb, the GNU Make debugger remake, or the Python debugger pydb.
Affinic Debugger GUI .aka. ADG, is designed as a graphical user interface for various debuggers. With the graphical windows, ADG can unleash the full power of debuggers by viewing multiple types of information within one view and maneuvering debuggers with easily clicking.