Low-impact HIIT with personalized plans, guided workouts, and progress tracking — Flutter mobile app with adaptive programming on Node.js, PostgreSQL, and AWS.
Selected screens across the product — from marketing surfaces to in-app flows.
Challenge
Most fitness apps pushed generic high-impact scripts with little context for sore joints, tight shoulders, or recovery needs — leading to drop-off or reinjury.
Solution
Built adaptive low-impact programming that scales load and impact by goal, schedule, and available equipment, with a swap library for joint-friendly alternatives.
Challenge
Users were motivated by calorie burn charts that rewarded ego over consistency, making it hard to see honest readiness and trend wins.
Solution
Shipped volume, readiness, and trend insights that highlight sustainable streaks aligned with recovery — not just calories torched.
Challenge
Coaches needed timers, audio cues, and form prompts to stay in sync during garage, hotel-room, and gym sessions on unreliable Wi‑Fi.
Solution
Delivered a coach-led workout player with offline mode, structured timers, and audio cues so members could finish sessions anywhere.
Challenge
Heart-rate zones and active energy lived in platform health apps but did not inform training intensity inside the product.
Solution
Integrated Apple Health and Google Fit so readiness and zone data could inform session recommendations without over-collecting metrics.
