Labs64 NetLicensing - Monetize your digital products and services
strace - Trace system calls and signals. A diagnostic, debugging and instructional userspace utility.
Open iT LicenseAnalyzer - Open iT LicenseAnalyzer is a software usage metering and optimization tool that provides an enterprise-wide overview of installed software programs managed by most software license managers.
ftrace - A function tracer for the Linux kernel.
10Duke Enterprise - Powerful cloud-based licensing solution designed for fast-growing software businesses looking to scale up software licensing & minimize friction.
Valgrind - Valgrind is an instrumentation framework for building dynamic analysis tools.