Widget needs work
This app is very useful and the widget is a game changer on iOS. It occupies the top left corner of my Home Screen. If it changes to High strain mode (ring turns red) I’ll spot it when picking up phone and will do one or two sessions if I can. Easily done on public transport.
The widget seems to be timer based and doesn’t monitor my time on devices (iPhone, iPad, Mac mini). The ring chart seems to be reporting on time from last app session but it doesn’t seem to be working well. That said it still is an effective reminder.
Ambient light, eye glasses, phone and head position all seem to influence eye tracking. Make sure face is reasonably well lit, head level instead of looking down, eyes are open wide, and device in front of nose.