Privacy Policy

This policy describes how we handle user data, including personal information, in the BreathCalm iOS app (the "Service").

1. Business Information

Daisuke Narita (Individual Business Owner) / keiodaisuke@gmail.com

2. Scope of Application

This policy applies to the Service and related support communications. It also applies to our website pages that link to this policy.

3. Information We Collect

• Device identifiers (e.g., identifierForVendor / device-id) used for basic functionality and fraud/abuse prevention
• Breathing session data (session type, duration, mood scores before/after) stored locally on device
• In-app settings and preferences (e.g., notification preferences, streak data)
• App usage/analytics events (e.g., session starts, completions, paywall interactions)
• Subscription status information (managed via App Store / RevenueCat)
• Support communications (e.g., emails you send to our support address)

4. Main Collection Methods

• Information you enter in the app (mood scores, session preferences)
• Information generated by your interactions with the app (events/logs)
• Information received from the App Store and our subscription infrastructure (RevenueCat)
• Support inquiries sent to our support desk

5. Purpose of Use

• Provide and improve the Service
• Deliver reminders you opt into and measure engagement to improve them
• Manage subscriptions and entitlement status
• Analytics, debugging, and security measures
• Respond to support inquiries and send important notices

6. Third-Party Provision and Outsourcing

We use the following vendors to operate the Service. Information may be transmitted to them as necessary for service provision.

• Apple (App Store billing, SKAdNetwork attribution, and related platform services)
• RevenueCat (subscription/entitlement management)
• Mixpanel (product analytics)

7. Data Storage

Breathing session data, mood scores, and streak information are stored locally on your device. They are not uploaded to our servers. Your wellness data stays private.

8. Data We Do Not Collect

The Service does not access HealthKit data, motion/activity data, or Screen Time data. Breathing session records are stored locally and are not transmitted to our servers.

9. Retention Period and Deletion

• Session data: Stored locally on your device. Deleted when the app is removed
• Identifiers on device: Reset when the app is deleted (IDFV behavior)
• Support history: Stored for a reasonable period to respond and maintain records

10. Security Measures

• Secure communication (HTTPS/TLS)
• Session data stored only on-device (no server transmission)
• Appropriate access controls and operational monitoring

11. User Rights

You may request access to, correction of, or deletion of your personal data by contacting us at keiodaisuke@gmail.com. Requests will be handled within a reasonable period.

12. Children

The Service is not directed to children under 13. We do not knowingly collect personal information from children under 13.

13. Policy Updates

We may update this policy as the Service evolves. Material changes will be communicated via in-app notice or email. Continued use of the Service after changes constitutes acceptance.

14. Contact

For questions or concerns about this policy, contact: keiodaisuke@gmail.com

Last updated: February 2026