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

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

Blockpad.net - Blockpad is spreadsheet software re-imagined for engineering. It gives engineers a better way to create, manage, and share critical calculations.

Miramath - Miramath is an open source project inspired by the MathCad mathematical application.

Swift Calcs - The Collaborative Computational Notebook Built for Modern Engineering.

MathStudio - MathStudio, formerly SpaceTime, is the most comprehensive math app available for mobile devices.