CoolerController-free

It can control the wind force of the fan by changing the power-on frequency.

CoolerController-free can control the wind force of the fan by changing the power-on frequency. The app is designed to cool down your Mac by means of an external PC fan.

The program monitors the CPU loads in real time, and outputs the appropriate power to the fan. In addition, it helps you save your MacBook's battery life effectively.