Savage Mushroom Fitness (AI Avatar Gym App)

AIVATAR PTY LTD needed a fitness app that goes beyond basic workout tracking. The vision: an AI personal trainer that actually coaches users through workouts with real-time voice guidance, remembers their goals and injuries across sessions, and handles nutrition planning alongside training.

A comprehensive AI-powered gym and fitness platform for iOS and Android with conversational coaching and persistent user memory.

Conversational AI coach that adapts to user goals, fitness level, and preferences

ElevenLabs-powered real-time voice guidance during workouts

Persistent memory using pgvector that remembers user goals, injuries, and preferences across sessions

Progressive overload automation with intelligent weight and rep suggestions

AI-generated meal plans with calorie and macro tracking

Personalized nutrition recommendations based on training goals

Daily intake logging with progress visualization

Apple Health sync for heart rate, steps, and activity data

Workout data flows between the app and wearable ecosystem

Built the marketing site and multiple A/B landing pages

App Store and Google Play listing optimization

Competitive analysis across 7 major fitness apps

6-week user acquisition strategy

Frontend: React Native (cross-platform iOS & Android)

Backend: Node.js with PostgreSQL

AI/ML: OpenAI API for coaching intelligence, pgvector for persistent user memory

Voice: ElevenLabs API for real-time voice coaching

Infrastructure: AWS S3, Firebase

Wearables: Apple HealthKit

Payments: Stripe

Design: Figma

I led the full product lifecycle as both developer and product lead: system architecture, mobile development, AI coaching engine, voice integration, nutrition features, wearable sync, marketing site, landing pages, App Store and Play Store listings, competitive analysis, and go-to-market strategy.