RemotEV3 is an Android app developed by Tanas Inc that allows you to control your Lego Mindstorms EV3 robots using your mobile device. The app is available for free and falls under the category of Education & Reference. It is a useful tool for those interested in robotics and programming.

The app offers two ways to control the robots: touchpad and orientation sensor. The touchpad allows you to control the robot's movements and the orientation sensor lets you control the robot by tilting your device. The app claims to be compatible with NXT, but it has not been tested yet.

One great aspect of RemotEV3 is that it is open source. The source code is available on GitHub, making it accessible for developers to modify or contribute to the app. Overall, RemotEV3 is a helpful app for those interested in robotics and programming, and its open-source nature is a plus for developers.