Your comments have been terribly absolutist about your own opinions. Please accept that other people have different priorities than you. Accept that other people have different comfort levels regarding their children's privacy than you. There's nothing wrong with your priorities, but there's also nothing wrong with people whose priorities are different.
Im also not saying anything against his priorities, I don't care how he spends his time.
What I am saying is I don't think this app will make money, so if that is his main motivation, then it's a waste of time.
I keep an active open source profile just so I can pivot back to pure software development if needed. Casey likely makes more as a podcast host than he would make in corp dev as a mobile developer. Before that he was a .Net developer.