Check Fitness

TLDR

CheckFitness is an AI-powered personalized fitness and nutrition coach that adapts to a user's daily lifestyle changes, such as sleep quality, nutrition, and medication. The app aims to minimize decision-making around physical well-being, creating a seamless fitness experience through AI-driven adjustments, supplements, and medications. My role: Co-Founder, Engineer.

Sign up for beta user access: CheckFitness.com.

Challenge

Managing fitness and nutrition efficiently is a constant challenge that requires daily effort—gym sessions, nutrition tracking, supplements, and medical considerations. Existing fitness tools couldn’t provide adaptive, personalized solutions that responded to real-time lifestyle changes and my specific health needs AND at low-cost, so my co-founder and I decided to build it.

Stakes

The creation of the app comes from a personal place: I spend significant time each month monitoring my health, planning my workout, tracking my nutrition, etc. because I have a rare genetic disorder. Without careful planning and strict adherence, my health immediately declines. The problem is the amount of time, attention, and cognitive overhead is hours every month when, with AI, it should be minutes. Failure to find an intelligent, personalized, cost-effective approach results in a decline in my physical well-being.

Vision

To create an AI-powered fitness and nutrition coach that adapts to individual needs and lifestyle changes in real-time, aiming to automate health management to require less than 15 minutes of active planning per week. The goal was to make decisions about workouts, nutrition, and health as frictionless as possible while achieving peak physical fitness, measured by both physique

Roadblocks

  • No existing fitness solutions dynamically adapted to changing health and lifestyle factors at a price point of <$30/month.
  • Limited resources to develop a full-stack AI-driven application with advanced personalization features.
  • Selling weight loss medications directly in-app requires a non-trivial amount of state-by-state regulatory approval. This part of the app is in progress.

Strategy

I leveraged 14+ years experience in the fitness industry and modern AI capabilities to create a product that truly meets my needs. The app was built using the TALL stack—Laravel, Filament, PHP, and Tailwind CSS—along with Anthropic’s Claude 3.5 API to enable AI-driven adaptive personalization.

Execution

  • Defined the product vision based on years of experience in the fitness industry and my personal health management needs.
  • Architected the web application with a focus on scalability and responsiveness, using Laravel, Filament, PHP, and Tailwind CSS.
  • Integrated Anthropic's API to provide AI-driven adaptive adjustments to workouts and nutrition plans based on lifestyle changes.
  • Launched a beta version of the app to test functionality and collect user feedback.

Impact

  • Developed an innovative solution that adapts workouts and nutrition in real-time, reducing the time and mental effort users spend on managing their health.
  • Enhanced adherence to fitness routines by adjusting plans based on daily factors like sleep quality, nutrition, and supplements.
  • Built a scalable, user-focused web application that can grow with user needs, with early adoption by beta users who appreciated the personalized experience.