1. Information We Collect

(1) Account Information

When using the engine-sharing features of the Service, users may sign in using external authentication providers:
· Google Sign-In
· Sign in with Apple

We obtain only the minimum information required for authentication, such as:
· User ID issued by the authentication provider
· Name (if permission is granted; Apple may provide a private relay address)
· Email address (including Apple private relay addresses)

(2) User-Uploaded Data

We store information that users voluntarily upload, such as:
· Engine settings and specifications
· Images and descriptions
· Engine IDs and metadata

These are stored on our servers only when the user explicitly uploads them.

(3) Device and Usage Information

To improve the quality of the Service, we collect anonymized, non-personally identifiable data, including:
· App version
· Device model
· OS version
· Usage frequency of specific features
· Anonymous analytics for performance and functionality improvement

This information is not used to identify individual users.

2. Purpose of Use

Collected information is used for the following purposes:
1. To provide and operate the engine-sharing features
2. To prevent unauthorized or abusive use of the Service
3. To analyze usage statistics for service improvement
4. To respond to inquiries and provide user support

We do not use collected information for any purposes other than those described above.

3. Disclosure to Third Parties

We do not provide personally identifiable information to third parties except in the following cases:
· When the user has given consent
· When required by law
· When sharing is necessary with trusted service providers (such as hosting companies) under strict confidentiality obligations and only for essential operational purposes

4. Data Security

We take reasonable technical and organizational measures to protect collected data, including:
· Limiting access to administrative systems
· Storing data with appropriate access controls
· Not storing user passwords (authentication is handled by external providers)

5. Deletion of User Data

Users may delete the engine data and other information they have uploaded through the Service.
Account deactivation can be performed within the app.
If you wish to request the complete deletion of your account and all associated data, please contact us through our support channel.

6. Use of Cookies

The web-based engine-sharing site uses cookies to maintain login sessions.
Cookies are not used for advertising purposes.

7. Changes to This Policy

We may update this Privacy Policy as necessary.
In the event of significant changes, we will notify users through the app or on our website.

8. Contact

For questions or requests regarding this Privacy Policy, please contact:
Kitt Peak, Inc.
https://kittpeak.co.jp/