Sensor de Proximidad is a free Android application developed by Eduardo Cervantes Aguilar. The app falls under the Education & Reference category and provides a simple yet effective solution to simulate the phone's proximity sensor behavior.

The app changes the screen color to blue when the proximity sensor is at 0, and to yellow when it detects an object nearby. This feature simulates the phone's behavior when you bring it close to your ear during a call, and the screen turns off. The app is easy to use and doesn't require any configuration, making it a useful tool for those who want to test their phone's proximity sensor.