Hello Ciephunna53
There might have been a recent change. Working as a ticket inspector, so far, I have not seen a passenger presenting me the Swiss Travel Pass in the SBB Mobile App.
No, she can’t unless she uses your account, which is not recommended. Only tickets that you purchased with your own account are viewable in your app. Importing the tickets into another app is not possible, as I already mentioned.
Kind regards,
Roland