Privacy Policy

Last Updated: January 18, 2026

1. Introduction

Gymini ("we," "us," or "our") respects your privacy. This Privacy Policy explains how we collect, use, disclose, and safeguard your information when you use our mobile application.

2. Information We Collect

2.1 Personal Information

  • Account Information: Email address, display name, profile photo
  • Body Metrics: Height, weight, age, gender (optional)
  • Training Data: Workout records, exercise types, sets, weights, reps, rest times
  • AI Chat History: Conversations with AI characters

2.2 Automatically Collected Information

  • Device Information: Device model, iOS version, identifiers used for app identification
  • Usage Data: App usage patterns, feature interactions, crash reports
  • Analytics Data: Session duration, screen views, user flows

3. How We Use Your Information

  • Service Provision: Workout tracking, AI coaching, personalized recommendations
  • AI Features: Training menu generation, progressive overload suggestions
  • Communication: Service updates, new features, support
  • Improvement: App enhancement, bug fixes, feature development
  • Analytics: Usage patterns, performance monitoring

4. Third-Party Services

4.1 Google Gemini AI

  • Purpose: AI chat, training menu generation, personalized coaching
  • Data Shared: Chat messages, training context, user goals
  • Privacy Policy: Google Privacy Policy

4.2 Firebase Services

  • Authentication: Secure user login and account management
  • Firestore Database: Workout data, user profiles, training history
  • Storage: Profile photos, custom exercise images
  • Analytics: Usage statistics, crash reporting
  • Privacy Policy: Firebase Privacy Policy

5. Data Retention

  • Account Data: Retained until account deletion
  • Workout Records: Deleted within 30 days after account deletion
  • AI Chat History: Retained until account deletion (external services may retain data for a certain period)
  • Analytics Data: Retained for 14 months (Google's setting)

6. Data Security

  • Encryption in transit (TLS/SSL)
  • Encryption at rest (Firebase security)
  • Access controls and authentication
  • Regular security audits

7. Your Rights

  • Access: Request your personal data
  • Correction: Update inaccurate information
  • Deletion: Delete your account and data
  • Portability: Export your data
  • Objection: Opt-out of certain data processing

8. Children's Privacy

Our App is not intended for users under 18 years old. We do not knowingly collect personal information from individuals under 18.

9. International Data Transfers

Your data may be transferred to and stored on servers in various countries, including the United States and Japan. We ensure appropriate safeguards are in place.

10. Changes to This Policy

We may update this Privacy Policy from time to time. We will notify you of significant changes via in-app notification or email.

11. Contact Us

For privacy-related questions or requests:

Shun Takenaka
Address: Room 307, Luxena Musashi-Shinjo, 4-19-25 Suenaga, Takatsu-ku, Kawasaki-shi, Kanagawa 213-0013, Japan
Email: contact@gymini.jp
Website: https://gymini.jp