iOS Question Launch app from link in email

Typical, as soon as I post a message, I find the answer!

It seems that I can register a URL scheme ,https://www.b4x.com/android/forum/threads/register-url-scheme.46237/#post-285430,
and then use that to open the app.

I do have a followup. How would I present, in an email, i button/link which will direct the user to the correctly constructed intent/scheme for ANdroid or Apple ?

You can use a custom scheme (instead of http) in Android and set it to be the same as the custom scheme in your B4i project.

Thanks for confirming Erel