This is what we already have in Western Australia when returning from medium risk states, although only 4 mins IIRC to respond. Then a telephone call rather than an immediate visit by police.
It might seem Orwellian, but considering that some people go shopping, to gyms and visiting when they are supposed to be quarantining, it became necessary.
It is not stressful at all, and very easy if you are doing the right thing and staying home, which most do. Plus each day you open the app and confirm your health is good. Much better being at home isolating than in a hotel room!