No, and that’s deliberate. kadn runs on your phone, for you. It doesn’t watch or restrict your child’s device. It gives your kid more of you.
Calls and SMS always work. kadn blocks apps you choose, never the phone itself. Emergency calls, camera and maps are untouched unless you block them.
Yes. Make the dinner rule a pact: the same rule runs on both phones until the date you set, and leaving takes a visible 24 hours. Nobody quietly gives up at 9pm.
No. A rule covers only the apps you pick. Many parents block feeds and video and leave mail or Slack open, or give work apps their own softer rule.