I have the requirement to launch an app when an sms or email link is followed. I have already been reading about URL schemes and already test that and it works, but the prob
I would insert a link to the website in SMS body. Then I would write a script on the website which will either open a download link or open the app
This answer will solve your problem
It can be done. The way I would structure it is by having a redirect from a server you control.
Here is an interesting question with several ways to check if the launch attempted via your custom URL was successful.