Hello aaronyogurt
They are equal in terms of validity. And you are welcome to use/delcare the Swiss Half Fare Card as “Half Fare Card” wherever you can select ‘Half Fare Card’; Swiss Half Fare Card is not explicitly mentioned when it comes to discount selections.
But, you should not make a confusion and name it Half Fare Card when talking to staff, since the Half Fare Card handling is different from the Swiss Half Care card. The former is for residents, with customer number, on a red plastic card; the latter is a PDF ticket, without customer number, for tourists.
Does that make sense? If not, please let me know; then we will further work on the knowledge transfer 🙂
Kind regards,
Roland