Just so happens that a week ago my wife challenged our family to collectively cut back our cell phone usage. So we all installed the Moment app and now we can see each other’s daily usage (created a “Moment family”)… and it’s working. Knowing that we all made this agreement keeps me aware and mindful of when I pick up my phone. Moment *does* have a shock collar (it alarms when you go over your limit) and it’s pretty annoying and not effective. Space sounds like a different approach, look forward to trying it out.