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.
14. Contact
Privacy questions? Contact us at privacy@support.judoka.ai
Judoka Inc. · Los Gatos, California