TUTORIALS
https://youtube.com/playlist?list=PLUskUU-NvGqivyU-pOoezOtZgfpdnf4hD

TROUBLESHOOTING
https://julietapp.blogspot.com/p/troubleshooting-general.html

This app allows you to open apps using the proximity sensor.
Just cover the proximity sensor to open the selected app.
NOTE: The proximity sensor usually sits up near the top speaker.

NOTE
The selected app will be opened automatically and brought to the foreground

Features and Benefits

• Persistent service: Background service.
Autostart on boot and after update
• No root
• Ability to use volume keys to select enabled app to launch
• Custom sorting
• Easy to use

NOTE
This service does not interfere with the proximity sensor during a call.

Other versions
https://play.google.com/store/apps/details?id=com.argonremote.proximitysensoropenapp