PID LoopSim is the free limited version of PID LoopSim Pro
PID LoopSim is an Android-based simulator for PID practice. It may be used to improve tuning skills by adjusting the PID terms in real time and seeing the reaction of the system. Enter your process characteristics and try out the tuning parameters before applying them in your plant. The simulator shows, in real time, how your process will respond to your tuning parameters based on set point changes.
This PID simulator responds in real-time speed in order to get plant-like experience. This means, the simulation responds at the same speed that the real plant would do in real life, so you can get a feel or tuning loops in the real plant.
For more information and instructions, please visit http://www.droidbus.com/PIDLoopSim/