Misses the mark completely
The whole purpose of the product was to let those around you know if you’re busy or not with a color code. Green if you’re available, red if you’re busy in its simplest form. This app should monitor the phone for active calls (cellular, FaceTime, Zoom, Teams, WhatsApp, etc.) and then turn the light red when you’re on a call, and green (or off to save battery) when you’re off a call.