Valgrind - Valgrind is an instrumentation framework for building dynamic analysis tools.
Widgeridoo - Custom and pre-made widgets for iOS and macOS
Process Monitor - Monitor file system, Registry, process, thread and DLL activity in real-time.
Widget Web - Widget Web is a handy application that allows you to view the content of web pages in a widget on your iOS device’s home screen.
WinAPIOverride - WinAPIOverride : This software allows you to monitor and/or modify any function of a process for any calling convention (stdcall or cdecl)
Glimpse - Discover trends before they're trending