1. Information We Collect
Account Information
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Email address (from Google sign-in)
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Full name and display name
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Profile photo (optional)
Physical Information (optional)
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Height and weight (for competition categories)
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Date of birth (for age-appropriate training)
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Gender (for competition categories)
Training Data
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Class attendance and check-ins
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Training session intents and focus areas
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Belt rank and promotion history
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Program enrollments and progression
AI Conversations
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Questions you ask AI Sensei
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Saved technique notes and advice
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Training diagnostics results
Connected Services
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Whoop workout data (if connected)
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Heart rate zones and strain scores
Family Data
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Children's profiles (parent-managed)
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Relationship connections
2. How We Use Your Data
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Display your training history and statistics
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Enable class RSVP and attendance tracking
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Provide personalized AI training guidance
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Show you to instructors for class management
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Calculate competition weight categories
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Sync workout data from connected devices
3. Who Can See Your Data
You Control (in Settings)
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Member directory visibility
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Classmate visibility for RSVPs
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Profile photo visibility
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Training partner history visibility
Always Visible To
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Your dojo's instructors and administrators
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Parents (for child accounts)
Never Shared
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AI conversation content (private to you)
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Physical measurements (private to you)
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Whoop tokens and credentials
4. Children's Privacy & Age Requirements
Age Ratings
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Apple App Store: Rated 12+ (Infrequent mild mature themes)
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Google Play Store: Rated Everyone 10+ (Mild fantasy violence)
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Content includes martial arts instruction appropriate for all ages
COPPA Compliance
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Children under 13 require parent/guardian accounts
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Parents manage all privacy settings for children
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Parents sign waivers on behalf of minors
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Child profiles have restricted default visibility
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No data collection from children without parental consent
Parental Controls
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Parents can view and manage all child account data
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Parents can export or delete child data at any time
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Instructors have oversight of minor members in their dojo
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Subscriptions are family-shareable via app store controls
5. Data Retention
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Active accounts: Data retained while account is active
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Archived accounts: Name, waivers, and attendance retained for legal/liability purposes; personal data deleted
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Waivers: Retained for liability protection (7+ years)
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AI conversations: Retained until you delete them
6. Your Rights
You can:
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Export all your data (Settings → Data & Export)
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Download training history as CSV
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Delete saved AI conversations
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Update privacy settings anytime
7. Data Security
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All data encrypted in transit (HTTPS)
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Database hosted on Supabase (SOC 2 compliant)
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Google OAuth for secure authentication
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No passwords stored by Judoka
8. Third-Party Services
We use the following services, each with their own privacy policies:
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Supabase (database hosting)
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Anthropic Claude (AI Sensei)
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Whoop (optional workout sync)
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Expo (app distribution and updates)
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RevenueCat (subscription management)
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Stripe (payment processing)
9. AI Safety
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AI Sensei is trained specifically for judo instruction
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Safety guardrails prevent inappropriate content generation
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AI provides technique guidance and training advice only
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Conversations are private and not used to train AI models
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Parents can view AI conversations for child accounts
10. Payment & Subscriptions
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Payments processed securely by Apple/Google or Stripe
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We do not store credit card numbers
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Subscription status managed through RevenueCat
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No in-app purchases targeting children
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Refunds handled through respective app stores
11. Data Location
Data is stored in the United States.
12. What We Don't Do
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No third-party advertising
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No selling or sharing data with advertisers
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No location tracking or contact list access
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No public discovery of users outside your dojo
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No unsolicited messages to non-members
13. Changes to Policy
We'll notify you of significant changes through the app. Material changes affecting children's data will require renewed parental consent.
Judoka Inc. · Los Gatos, California