Privacy Policy

Thumbnail localization tool　|　Last updated: November 11, 2026

This English version is a translation provided for convenience. If there is any difference between the versions, the Japanese version prevails.

1. Introduction

This Privacy Policy explains how the thumbnail localization tool (the "Service") handles personal information. By using the Service, you agree to this Policy.

2. Information we collect

2-1. Information collected at registration

• Name and email address
• Basic information from the Google account used to log in (login is handled by Google's Firebase Authentication, and we do not store passwords)
• Plan and billing information

2-2. Information collected when using the Service

• Uploaded images and thumbnail data
• Translation and generation history
• IP address, browser and device information
• Access times and activity logs

2-3. Payment information (Stripe)

Credit card information is processed directly by our payment provider, Stripe. We do not store card numbers or other sensitive payment information. For Stripe's privacy policy, see stripe.com/privacy.

3. How we use information

• Providing, operating and improving the Service
• User authentication and account management
• Subscription management and billing
• Responding to inquiries
• Detecting and preventing misuse
• Meeting legal obligations

4. Cookies and analytics

The Service uses only the minimum cookies needed for it to work properly. To understand how our website (www.youtrans.biz) is used, we also use Google Analytics, an analytics tool provided by Google LLC. Google Analytics uses cookies to collect information such as the pages viewed, the referring site, approximate location, and browser and device type. This information does not include anything that identifies you personally, such as your name or email address. The collected data is managed under Google's privacy policy. To opt out of data collection by Google Analytics, use the Google Analytics Opt-out Browser Add-on.

5. Sharing with third parties

We do not provide, sell or share collected personal information with third parties, except in the following cases:

• With the user's consent
• When disclosure is required by law
• To service providers needed to run the Service (such as Stripe and Google)

6. Data storage and security

Collected information is stored on servers with appropriate security measures. However, we cannot guarantee complete security on the internet. Data that is no longer needed is deleted appropriately.

7. Your rights

Users have the following rights:

• To request disclosure of the personal information we hold
• To request correction or deletion of personal information
• To request that use be stopped or data be erased
• Data portability (for users covered by the GDPR)

To exercise these rights, please contact youtrans.work@gmail.com.

8. International data transfers

The Service may use servers outside Japan (such as in the United States). Data of users in the EU covered by the GDPR is transferred with appropriate safeguards in place.

9. Children

The Service is not intended for people under 13. If we unintentionally collect personal information from someone under 13, we will delete it promptly.

10. Governing law

This Policy complies with Japan's Act on the Protection of Personal Information (APPI) and the EU General Data Protection Regulation (GDPR).

11. Changes to this Policy

We will notify users in the Service or by email when this Policy changes. For important changes, users will be notified before the change takes effect.

12. Contact

For questions about how we handle personal information, please contact youtrans.work@gmail.com.