Privacy Policy
Last updated: September 1, 2026
We respect your privacy. This policy explains what data we collect, how we use it, and the choices you have over that data.
Information We Collect
Account information such as your name, email address, and encrypted password. Learning progress such as completed chapters, quiz scores, and flashcard statistics. As well as device information and usage logs to maintain service quality.
How We Use Data
Data is used to operate the service, sync progress across devices, build review recommendations, and improve the experience and quality of learning material.
Cookies & Local Storage
We use cookies and local storage to keep you signed in, remember language preferences, and temporarily store learning progress on your device.
Data Security
Data is stored with encryption and restricted access. We apply reasonable security measures to protect your personal information from unauthorized access.
Data Sharing
We do not sell your personal data. Data is only shared with parties that help operate the service, and they are required to keep it confidential in accordance with this policy.
Your Rights
You can access, correct, or delete your account data at any time through the Profile menu or by contacting our support team.
Data Retention
We keep your account and learning data for as long as your account is active, and delete or anonymize it within a reasonable period after you request account deletion.
Third-Party Processors
We work with trusted service providers to operate the service, including: Supabase (database & authentication), payment gateway providers (payment processing), and cloud hosting providers. These providers process data only to perform their services and are bound by confidentiality obligations.
International Data Transfers
Your data may be stored and processed on servers located outside your country of residence. By using the service, you consent to this transfer and storage.
Children's Privacy
The service is not directed at children under 13, and we do not knowingly collect personal information from them. If you believe a child under 13 has provided us with personal data, please contact us so we can delete it.
Contact
For questions about privacy and personal data, contact us at info@tokutoku.app.