Detect if iOS app is installed from within another app

Question

I have a button on my iOS app that will launch a third party app via deeplinking, but if said app is not installed, the button will not do anything.

How can I check if

Answer 1

You can call canOpenURL: to check. Note that you need to declare the URL scheme in your info.plist before you can make the request. This is done using the LSApplicationQueriesSchemes key.