I built a health web app alone. Can you roast my onboarding and UX?

Hello everyone!

I am a solo engineer and I just built Let’s Get Hot (letsgethot.app).

I got tired of fitness apps that act like spreadsheets. I built this to automate the logistics of healthy living. There's an onboarding with questions, it builds a visual meal calendar, handles injury-safe workouts, and makes a grocery list priced to your local budget. You can link your grocery list to Kroger (currently the only grocery i'm supporting) and with a couple clicks you can load your cart up with the meals and checkout on Kroger.com!

There is a 14-day free trial with no credit card required. I would love your honest engineering and design feedback!