Is there a way to define some kind of handling mechanism in Android and iOS that would allow me to do intercept either of the following:
mya
For the second option in your question:
http://myapp.com/events/3/
There was a new technique introduced with iOS 9, called Universal Links which allows you to intercept links to your website, if they are https://
https://developer.apple.com/library/content/documentation/General/Conceptual/AppSearch/UniversalLinks.html