I have a EpiServer website with my client. They also have an app which is outside of EpiServer. My site also has Content Delivery API installed.
The app consumes some pages data using Content Delivery API.
The ask is whenever the users share a content link through the app to other users and if user tries to open the link, we need to check if they have the app installed then open the content in the app else open in browser. I am not sure if there will be any changes or configurations required in EpiServer to achieve this.