User Approval Software

A simple API to request a user's real-time approval on anything via email, sms + mobile push.

C++ exception (and generic) stack trace debug suite

NOTIX is an audience re-engagement service based on web and in-app push notifications that work for both desktop and mobile devices.

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Trace system calls and signals. A diagnostic, debugging and instructional userspace utility.

Valgrind is an instrumentation framework for building dynamic analysis tools.

A function tracer for the Linux kernel.

A script-based dynamic tracing tool for Linux.

ltrace intercepts and records dynamic library calls which are called by an executed process and the...

C++ exception (and generic) stack trace debug suite

Monitor file system, Registry, process, thread and DLL activity in real-time.

API Monitor is a software that monitors and displays API calls made by applications and services. Its a powerful tool for seeing how Windows and other applications work or tracking down problems that you have in your own applications

SpyStudio is the best product to trace user-mode API calls on Windows.

WinAPIOverride : This software allows you to monitor and/or modify any function of a process for any calling convention (stdcall or cdecl)

DTrace is a performance analysis and troubleshooting tool for Solaris, Mac OS X and FreeBSD.