# CoachMoach

> CoachMoach is an AI-powered voice fitness coach that speaks, listens, and adapts to your workout in real time — giving gym-goers a genuine coaching presence without the cost of a human trainer.

CoachMoach is a web application (Progressive Web App) built for people who train alone. It replaces the silence between sets with a real coaching voice — one that knows your name, remembers your progress, adapts to your performance, and keeps you accountable rep by rep.

Unlike traditional workout apps that simply display exercise lists, CoachMoach is voice-first: the AI coach speaks during your workout, responds to your voice, and adjusts coaching intensity based on how you're performing that day.

## What CoachMoach Does

- **Real-time AI voice coaching**: The coach speaks during warm-up, between sets, during rests, and at workout completion. Coaching phrases adapt to the exercise, set number, personal records, and whether you're struggling or crushing it.

- **7 distinct AI coaching personalities**: Users choose a coach that matches their motivation style. Each coach has a different personality, voice, pacing, and philosophy.

- **Smart music integration**: Background music automatically matches workout intensity — calmer during warm-up, driving during working sets, mellow during cooldown. Music is sourced from Jamendo.

- **Hands-free rep logging**: Users can log reps by voice without touching their phone between sets.

- **AI workout generation**: Users describe what they want ("a 45-minute upper body push session") and the AI generates a structured workout with the right exercises, sets, reps, and rest periods.

- **Commitment tracking**: The app tracks streaks, completion rates, and personal records. The coach acknowledges these milestones with personalized congratulations.

- **500+ exercises**: Full exercise library with filtering by muscle group, equipment, and difficulty.

## The 7 AI Coaches

Each coach has a unique personality, voice, coaching philosophy, and communication style. Users can switch coaches at any time.

1. **Aria Sol** — The Wise Companion. Philosophy: "Small wins compound." Gentle, sustainable, habit-focused. Best for beginners and those building long-term consistency. Voice: warm, measured, encouraging.

2. **Master Ren** — The Kung Fu Monk. Philosophy: "Repetition builds mastery." Stoic, minimal, disciplined. Focused on fundamentals and daily practice. Voice: deliberate, philosophical, calm.

3. **Commander Iron** — The Drill Sergeant. Philosophy: "Excuses don't burn calories." High-pressure, no-nonsense, accountability-first. For those who want to be pushed hard. Voice: military cadence, intense, direct.

4. **Nova Prime** — The Elite Athlete. Philosophy: "Train like it matters." Performance-identity driven. Focuses on measurable output and marginal gains. Voice: professional, energetic, competitive.

5. **Vera Staal** — The Steadfast Leader. Philosophy: "Trust the process. Trust yourself." Calm authority, psychological safety, consistent high standards. Voice: composed, direct, confident.

6. **Atlas Vance** — The Tactical Optimizer. Philosophy: "What's the highest ROI move today?" Efficiency-obsessed, data-driven, eliminates waste. Voice: crisp, analytical, action-oriented.

7. **Dr. Synapse** — The Neuroscience Professor. Philosophy: "Understand the mechanism, own the result." Evidence-based, explains the science behind each exercise. Voice: professorial, detailed, methodical.

## Technology

- **Platform**: Web (Next.js 15, React 19), available as a Progressive Web App on iOS and Android
- **Voice synthesis**: OpenAI TTS API with coach-specific voice IDs and speech rates
- **Voice input**: Silero VAD (Voice Activity Detection) for hands-free interaction
- **AI workout generation**: GPT-4 class models for workout planning and coach conversation
- **Music**: Jamendo API for licensed workout music
- **Backend**: Supabase (PostgreSQL) for user data, workout history, and preferences
- **Auth**: Supabase Auth (email/password and magic link)

## Target Users

CoachMoach is designed for:
- People who train alone at home or in the gym and miss having someone in their corner
- Beginners who don't know how to structure a workout
- Experienced lifters who want an accountability system
- Anyone who finds standard workout apps too silent and impersonal

## Business Model

- **Free tier**: Access to workout tracking, exercise library, and basic coach interaction
- **Pro subscription**: Unlimited AI workout generation, advanced coaching, music integration, priority voice responses

## Key URLs

- App: https://coachmoach.vercel.app
- Blog: https://coachmoach.vercel.app/blog
- Privacy Policy: https://coachmoach.vercel.app/privacy
- Terms of Service: https://coachmoach.vercel.app/terms
- Sitemap: https://coachmoach.vercel.app/sitemap.xml

## Contact

For press, partnerships, or API inquiries: coachmoach.app@gmail.com

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*CoachMoach is built for lifters who train alone. Not a plan. A presence.*