• Developed a fitness and health app with real-time chat (one-to-one & community) using optimistic UI
updates.
• Integrated GPT-4o and DeepSeek Reasoner for personalized workout and nutrition plans.
• Added a hybrid subscription system with Stripe recurring payments and In-App Purchases on iOS &
Android.
• Designed an internal payout process — coach earnings sent via bank transfer after a 30-day hold.