The reality is that this sort of control would only be attractive to a very very small fraction of users, and no, not just because ‘people don’t care about privacy’ or whatever. There are just very few situations where someone is going to be able to look at this sort of data and do anything meaningful with it, especially when a) most apps are justifiably internet-connected, and b) the homogeneity of public cloud infra means you can’t really tell anything apart from endpoint alone.
A good set and forget option for the non-tecnical or those that can't be bothered is https://www.iantispy.com, basically just does it's thing and doesn't nag to upgrade.
Yeah nice one... Little Snitch is made in Austria and has email for support. The one I suggested is made in Australia and also has email for support. They are both offered by registered companies with their relevant registration numbers shown on their respective sites. Both have a privacy policy and a terms of service. Both "have complete control of your system" (whatever that even means, neither requires elevated privs). Seems pretty standard. iAntiSpy is also on the App Store, so there's that too.
