In App Purchase with fingerprint or Face ID in Objective c : I have an Objective C Project which i am working using Xcode 11 and i am trying to implement In App Purchase.
I used some tutorials and implemented successfully but i am not able to use Fingerprint or Face ID.

Please find the Image Url below in which it shows old subscription interface asking for password.

https://i.stack.imgur.com/Ux78D.jpg

Can someone help me ?