SMath Studio - Tiny, powerful, free mathematical program with WYSIWYG editor and complete units of measurements support.

IPSEpro - IPSEpro is a state-of-the-art heat and mass balance simulation software used for power generation, desalination, refrigeration, and other custom applications.

PTC Mathcad - PTC Mathcad PTC Mathcad is Engineering Math Software That Allows You to Perform, Analyze, and Share Your Most Vital Calculations.

IPSE GO - The cloud-based heat balance and process simulation software that is used for power generation, desalination, refrigeration and more.

EngineeringPaper.xyz - Online app for engineering calculations. Solves systems of equations, checks and converts units automatically, supports plotting, and allows for the creation of a link to share your work. Free and open source, no registration required.

GT Pro - GT-Pro: Guitar Effects Processor -