PLC-Ladder Simulator Pro for Arduino is a free education and reference application developed by ÖzenSoft Mobil App Games. The program is available on Android and offers a range of features such as a ladder logic simulator, real-time execution, simulated inputs and outputs, PLC timers, PLC counters, internal PLC flags, Bluetooth connection with Arduino, Arduino programming with Ladder, and Arduino control with Bluetooth. However, to use the last three features, you must purchase an Arduino loaded with "ArduinoLadder.ino".

The application offers a user-friendly interface, making it easy to navigate and use. It is an excellent tool for students, hobbyists, and professionals who want to learn or test their knowledge of programmable logic controllers. Overall, PLC-Ladder Simulator Pro for Arduino is a great program for anyone interested in PLCs and wants to learn the basics of ladder logic programming.