Pose detection
Real-time joint tracking and angle analysis. See your form with skeleton overlay and get instant feedback on squats, push-ups, curls, and more.
Your AI fitness coach
A judgment-free AI coach for introverts and beginners. Real-time pose detection and voice coaching guide your form — personalized plans and rep counting, all powered by AI.
Not a louder coach. A kinder start.
The problem we solve
- 50% of new gym members quit within 6 months, often citing intimidation and lack of guidance
- Personal trainers cost $50–150/hour — inaccessible for most people
- Fitness apps give you videos to follow, but never tell you if you're doing it right
Posey is a judgment-free AI coach that watches your form, understands your goals through conversational onboarding, and coaches you with warmth and encouragement.
How it works
Voice coaching
AI coach speaks directly to you during workouts. Get form cues, rep counts, and encouragement powered by Gemini.
Training plans
Personalized workout plans based on your goals. Rest tracking, exercise detection, and adaptive guidance.
Key features
- Real-time pose detection — 19 keypoints at 30fps, skeleton overlay, on-device rep counting
- Auto exercise detection — no manual selection needed; AI identifies exercises from visual + pose context
- Form analysis — joint angles (knees, elbows, hips, shoulders, torso) for biomechanical feedback
- Fatigue detection, AI-powered onboarding, text subtitles for AI responses
What Posey does
It listens first
Conversational onboarding learns your goals, experience level, equipment, schedule, and focus areas.
It creates a plan
Personalized 3-week workout plan based on your body, your schedule, and your confidence level.
It coaches in real-time
"Lift your chest." "Keep your back straight." "You're doing great." Spoken cues as you move.
It encourages, not intimidates
Warmth over pressure. "Progress, not perfection." Built for people who need a kinder start.
What we've built
Technical
- True real-time multimodal AI — watches and responds within seconds
- Sub-200ms audio latency — coaching feels immediate
- Zero exercise configuration — AI auto-identifies your movement
- Production deployment — one-command Cloud Run with proper auth
Human impact
- Democratized personal training — what cost $100+/hour is now accessible
- Built for the underserved — introverts, beginners, gym anxiety
- Judgment-free zone — no mirrors, no crowds, no comparison
- Encouragement over criticism — builds confidence, not insecurity
Built with
Swift & SwiftUI QuickPose / Apple Vision Gemini Live API Firebase AVAudioEngine
What's coming
Health, movement, and confidence should not belong only to the people who already have them. They should belong to everyone. For the person who wants to feel stronger but doesn't want to feel judged. For the person who's tried before and quit because no one was there to say "You're doing great. Keep going." Sometimes, what people need is not a louder coach. They need a kinder start. That's Posey.
Coming soon to the App Store
Get AI-powered pose coaching, personalized training plans, and real-time voice feedback on your iPhone.