Crazy? Tracking app for SO

Okay me and my SO been on and off for 8 months we had a little break and now we’re back together REALLY this time, we’re both taking it serious.

Now he has done things in the past and from time to time I worry about who’s he with and where’s he at, ( cheated on me before ) but I can see he’s trying to becoming a better person.

Would it be crazy is I had that app that tracks where you are, ( tells location, battery percentage, if he or she gets in a car accident, basically everything ) I’ve bring it up before to him and he was okay with it but we never done it.

Would u get this with your SO ? Or would that be pushing it ? ( btw I’m friend who dates my cousin told me about this and they have it and seem fine )