Privacy Policy
Last updated: October 2026 • Nihopi Platform
1. Introduction & Our Commitment
Welcome to Nihopi (nihopi.com). We respect and are committed to protecting your privacy and personal data. This Privacy Policy outlines how we collect, use, store, and safeguard your information when you visit our website or use our Japanese learning services.
2. Information We Collect
a. User Account Information
When you register an account or sign in via third-party providers (such as Google Sign-In), we may collect: your display name, email address, profile avatar, and secure authentication identifier.
b. Learning Progress & Interaction Data
To optimize your spaced repetition learning path, we store learning records including: saved vocabulary/kanji, flashcard study history, streak logs, completed reading passages, and personal locale preferences.
c. Technical Data & Session Cookies
We use essential cookies strictly to maintain secure login sessions, authentication tokens (JWT), and interface theme preferences. We do not use third-party advertising tracking cookies.
3. How We Use Your Information
- Provide, operate, and maintain the Nihopi Japanese learning platform.
- Personalize your study path, vocabulary memorization algorithms, and JLPT level exercises.
- Authenticate your identity securely and prevent abuse or unauthorized access.
- Deliver essential study reminders, password resets, or account support requests.
4. Third-Party Data Sharing
Nihopi DOES NOT sell, rent, or trade your personal information. We only share strictly necessary data with trusted cloud infrastructure providers to operate the service:
- Cloudflare: DDoS protection, network security, and global CDN caching.
- Keycloak: OpenID Connect / OAuth2 identity and access management.
- Resend: Transactional email delivery for system notices and verifications.
5. Your Rights (GDPR & Data Protection)
You have full control over your personal data on Nihopi:
Access & Correction
You can review and update your profile anytime in Account Settings.
Right to Deletion
You have the right to request permanent deletion of your account and learning records.
6. Contact Information
If you have any questions, concerns, or requests regarding this Privacy Policy and your personal data, please contact us at: