QSPICE™ Simulator Qorvo QSPICE™ Simulator delivers a significant step in the evolution of circuit simulation. QSPICE provides reliable power and analog simulation with speed and accuracy, with the ability to incorporate massive quantities of digital logic. The QSPICE modeling language was created with the advantage of hindsight from having authored thousands of mixed-mode simulation models. This design tool is licensed for commercial and educational use by everyone, is free to download and use, and has no feature limitations.