In iOS: Can my app launch another app and get a response/acknowledgement back? In iOS, is there anyway i can launch another app to do something and then get a response back saying that it’s done.

For example: My iOS app APP A launches another app APP B (e.g. Google Pay) to make a payment and then after the payment is made, I would like APP A to receive a response/callback/acknowledgement saying its done.

By the way, I'm having zero trouble getting APP A to launch APP B via UIApplication.Shared.Open(…)

** In android we use Android Intent to launch APP B and get a response back to APP A using OnActivityResult(…)**.

PS: My App is actually built in React Native using NativeModules.

Thanks
Custom URL Schemes
You can define and use a custom URL scheme to interact with other apps on iOS:
Defining a Custom URL Scheme for Your App 

Custom URL schemes provide a way to reference resources inside your app. Users tapping a custom URL in an email, for example, launch your app in a specified context. Other apps can also trigger your app to launch with specific context data; for example, a photo library app might display a specified image.