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Dev tools · June 3, 2022

IL

I love FitnessSF, but I hate their mobile app

In order to enter my gym, FitnessSF, I must load up their mobile app to open a QR code and scan in. 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/

Alternatives

In plain words

FitnessSF Wallet converts FitnessSF gym check-in QR codes into Apple Wallet passes that automatically appear when members are near a gym location. Built using JavaScript and the FitnessSF API, it eliminates the need to open the slow official app at the front desk. The tool is designed for FitnessSF members frustrated by lengthy app load times during gym entry.

written from the facts on this page · September 2026

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