When someone presses the button on the doorbell, it is most likely that you want to open the door lock once you have identified the person. To do that, you are required to start the door-lock-app. This is not an easy task to learn for elderly people.
Is there a way to enhance the Netatmo smart doorbell app to include a button like the one on the ID-Lock application which controls my door lock?
I guess it is possible provided I can obtain the required API documentations. Are the applications company private or open source?