Active Trackers: https://activetrackers.com
A fitness web app I built during the first year of COVID to track pull-ups, push-ups, etc. A couple of my family members purchased a subscription, but otherwise it hasn't gotten any traction.
I have monthly goals for push-ups and pull-ups, so I still use it every day to track my progress.
It's built with Laravel, using Spark, Jetstream, and Tailwind. Before building the app, I had only dabbled with Laravel, so building it was a great learning experience.