Privacy Policy

This policy describes how we handle user data, including personal information, in the Thankful - Gratitude Journal 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
• Gratitude journal entries and affirmation data (stored locally on device)
• In-app settings and preferences (e.g., notification preferences, streak data)
• App usage/analytics events (e.g., journaling sessions, streak events, 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 (journal entries, affirmations)
• 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

Journal entries and personal affirmations are stored locally on your device. They are not uploaded to our servers. Your gratitude data stays private.

8. Data We Do Not Collect

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

9. Retention Period and Deletion

• Journal entries: 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)
• Journal data stored only on-device (no server transmission)
• Appropriate access controls and operational monitoring

11. User Rights

Users can request disclosure, correction, suspension of use, or deletion of their information. Please contact keiodaisuke@gmail.com.

12. Cookies

The landing page uses only the minimum necessary cookies. Cookies themselves do not contain personal information.

13. Use by Minors

Users under 13 years of age cannot use this service without parental consent.

14. Compliance

We comply with the Personal Information Protection Act and other related laws and guidelines.

15. Revisions

When revisions are made, we will announce them on this page, and important changes will be notified through in-app notifications, etc.

16. Contact

Please contact keiodaisuke@gmail.com.

Last Updated: February 24, 2026