TapoMobileApp is an Android app to toggle privacy on all of your Tapo C200 Cameras at the same time. When I enter my house, I set Privacy On - Leaving I can set it off - too easy
Set up all your cameras to have the same username and password. On each camera go to Camera Settings | Advanced Settings | Camera Account and create an account on each camera
Store the username and password in the settings.json file
The app needs to know the ip addresses of each of the cameras, you can either enter them in the text box or click scan to find them automatically. This is only required on first usage.