A free app for Android, by dzLab.

A simple app for testing the proximity sensor on Android phones. This tool is a useful diagnostic application that can be used for checking if the proximity sensor is working properly or not. To use this tool, first, you need to install it on your device. After installation, you need to open the tool and click on the “proximity test” button. You need to make sure that your phone is placed near your face.

Once the testing is done, you will get a response, and the results will be displayed on the screen.

If the results are positive, you will be notified that the proximity sensor is working properly.