Their app takes roughly 10,000 years to load so I stand like an idiot at the front desk, turning the app off and on again to just get the QR code.
I wrote a little bit of javascript that hits the FitnessSF API and generates a Mobile Wallet Pass. I also hard coded all the fitness SF lat/long locations, so the mobile wallet will pop up when you're nearby.
I hope this restores a little bit of sanity in someone else's life.
https://fitnesswallet.app/