Unity IAP and biometric purchases?

When purchasing with IAP a native dialog pops up and asks for a password. In other games like candy crush, a purchase, say on iOS, requires a double tap and then a Face ID verification. How can this be applied to Unity?

 

Yes, this should work with no changes. The purchase process is handled by the stores, not by Unity.

 

Okay thanks for that info. Has anyone experienced any issues with the bio activating? In our ios/android builds, at least in the sandbox mode it only allows a password. Does this change once we go "live"? Curious if anyone else has experienced this.

 

It sounds like it only works in live apps, but not confirmed, just a Google search https://stackoverflow.com/questions/49301450/how-to-add-touch-id-with-in-app-purchase-in-objective-c

 

I know you mention IOS, but for me on android, it first asks for a password, then asks if future purchases should use a fingerprint.
This is on an Alpha release on the google play store.
Again I know your issue is IOS but just in case anyone else searches.

 

Thanks for the info. I'll check the android on our next build.