Zero-G App

Inspiration

We wanted to make daily workouts feel as exciting as playing a game. Traditional fitness apps often become repetitive and fail to keep users motivated. The idea of combining space missions with exercise came from our frustration with that - we wanted to turn every rep into an adventure.

What it does

Zero-G transforms ordinary workouts into immersive space missions aboard a virtual Mothership.

• 🎙️ AI Voice Coach: real-time guidance during every rep
  
• 📸 Camera Vision: form check and automatic rep counting
  
• 🤖 AI Missions: fresh daily storylines generated by AI
  
• 🛰️ Spaceship Repair: every day, each workout fixes critical systems
  
• 🎮 G-Points: earn rewards, keep streaks, and climb the ranks
  
• 🌌 Talk to Mothership: chat or ask anything to the AI captain
  
• 🕹️ Challenge Mode: multiplayer duels with other astronauts
  
• 🌍 Drift Mode: warm-up exercises with gyroscope & accelerometer
  
• 🔔 Daily Reminders: smart notifications to keep you on track
  

How we built it

• Frontend: Swift (iOS), SwiftUI
• Backend: Supabase + RevenueCat + OneSignal for subscriptions, progress sync, and notifications
• AI: Apple Vision models for form detection & rep counting, OpenAI for daily mission content, ElevenLabs for immersive AI voice
  
• Design: Figma for UI, space-inspired assets, and animations
  

Challenges we ran into

• Achieving accurate body tracking using only camera hardware
  
• Generating daily missions that feel meaningful, not repetitive
  
• Designing gyroscope-based warm-up exercises that are fun and reliable
  
• Building multiplayer challenge logic with fair scoring
  
• Navigating App Store review rules for subscriptions & privacy compliance
  

Accomplishments that we’re proud of

• Built a fully functional AI personal coach correcting form in real time while staying in character
  
• Added Talk to Mothership, giving users an AI companion beyond workouts
  
• Designed Challenge Mode to bring friendly rivalry into fitness
  
• Delivered AI-generated daily missions to keep long-term engagement high
  
• Successfully integrated subscriptions + payments through RevenueCat & Apple sandbox testing
  
• Created Drift Mode as an innovative warm-up system using gyroscope data
  

What we learned

• How to balance gamification with serious fitness benefits
  
• Ways to optimize Apple Vision for real-time performance without draining battery
  
• Best practices for writing AI-generated storylines tied directly to exercises
  
• That AI companions can become more than coaches - they can be motivators, friends, and mentors
  

What’s next for Zero-G App

• Multiplayer co-op missions: repair the Mothership together with friends
  
• New mission types with expanded storylines & difficulty scaling
  
• Wearable integration (Apple Watch) for deeper biometric feedback
  
• Family Mode: group training sessions with shared progress
  
• Community-driven seasonal challenges
  
• Focus Mode: To solve the doomscrolling problem
• Body Composition analysis based on Camera input (muscle and fat)
• Food Calorie Estimator
• Even more user insights and stats

Built With

• adobe
• coreml
• cursor
• elevenlabs
• figma
• github
• onesignal
• openai
• revenuecat
• supabase
• swift
• swiftui
• testflight
• vision
• xcode