NXT Simple Remote is a free Android application developed by Ferdinand Stueckler. It falls under the category of Social & Communication and is specifically designed for controlling LEGO Mindstorms NXT Engines.

This simple remote control app allows users to control their LEGO Mindstorms NXT Engines using their Android devices. With a minimum requirement of Android 2.1, users can easily connect their devices to the LEGO Mindstorms NXT via Bluetooth. The app supports the control of Ports A, B, and C, providing users with the ability to interact with their LEGO creations.

One of the key features of NXT Simple Remote is that it does not require any NXT Program to be installed on the LEGO Mindstorms NXT. Users can simply pair their Android device with the NXT and start controlling it right away. However, it is important to note that a previous Bluetooth pairing is required for the app to function properly.

Overall, NXT Simple Remote offers a straightforward and convenient way to control LEGO Mindstorms NXT Engines using an Android device. It provides users with the flexibility to interact with their LEGO creations without the need for additional programming.