PRIVACY

Last updated: 2026-09-09 PRIVACY POLICY Personal AI Fitness Coach ("the app") collects health and fitness data to generate personalized, adaptive workout plans. This policy describes what we collect, how it is used, and what stays on your device. DATA COLLECTION Onboarding Information: When you set up the app, we collect your primary fitness goal (fat loss, muscle gain, endurance, general fitness), target workouts per week, preferred workout duration, available equipment, preferred exercise types, fitness level, any injuries or limitations, usual training schedule, and food preferences. You also select a "life difficulty level" setting ranging from relaxed to ultra-extreme athlete. Health Data: The app reads data from Apple Health, Google Health, Fitbit, Whoop, and Oura. Specific metrics include sleep duration and quality, heart rate variability (HRV), resting heart rate, daily activity, completed workouts, active exercise minutes, and VO2 max. The app also captures your daily self-reported soreness, energy level, and stress/fatigue ratings. Usage Data: We track your workout completions, streaks, skipped workouts, exercise preferences, personal records, and interactions with the AI coach including chat messages. ON-DEVICE VS SYNCED DATA On-Device: Your raw health data from wearables and Apple/Google Health is stored on your device. The app calculates your readiness/recovery score on-device, applies the adaptive training engine (which uses acute:chronic workload ratios, HRV-guided training, sleep debt analysis, and workout history), and builds a rolling local profile of your exercise preferences, completion patterns, and performance. All processing remains on your device. Synced to Servers: To generate and adjust your workout plans, we send only derived health metrics to our AI backend—specifically calculated readiness scores, training load summaries, recovery trends, and activity summaries. We do not send raw health data. Your onboarding preferences, chat messages, and generated workout plans are also synced. Wearable Account Linking: To read data from Fitbit, Whoop, or Oura, we use OAuth. Your authentication tokens are securely stored on Cloudflare Workers and used only to refresh your health data syncing. Your login credentials are never stored by us. THIRD-PARTY SERVICES The app integrates with Apple Health, Google Health, Fitbit, Whoop, and Oura to access health data. These services control their own privacy practices. We use Cloudflare Workers for secure token exchange, token refresh, and LLM proxy requests. DATA USE We use your data exclusively to: - Generate your initial workout plan and daily adjustments based on your actual readiness and training load - Provide real-time AI coaching via natural language chat - Show why each workout was changed, with real data: HRV values, heart rate trends, and workload ratios - Calculate and display readiness scores and recovery trends - Track streaks and workout history for progressive overload - Personalize daily tips and recommendations - Support goal-setting across fitness, sleep, activity, recovery, and energy We do not use your health data for advertising or sell it to third parties. TIERS The free tier provides one daily workout plan. The Pro tier includes live plan updates on app open and wearable sync. All users' health data receives equal privacy protection regardless of tier. DATA RETENTION AND DELETION Health data is retained on your device indefinitely. Synced data on our servers is retained to maintain continuity of your coaching experience. You can request data deletion at any time; deletion will reset your profile. CONTACT For privacy questions or data deletion requests, contact hello@loudunicorn.com.