Third party touch ID lock

I'm currently using Apple iPhone 7, it is more secure than Android but what I found not suitable to me is that I couldn't lock my social apps like Whatsapp, Facebook, Instagram through touch id. Many of you might have used Apple smartphones and have come up with the same issue, so I request you all to share your views on the same that how could I make my social apps more secured by touch id. I have done some research on this and finally come up with an conclusion that this can only be done by using third party apps. Share your experience.