Privacy
Policy

We may collect personal information that you voluntarily provide to us when you:

• Register for or log in to an optional account • Sync study progress, bookmarks, practice results, profile settings, and preferences • Sign up for our newsletter or free study materials • Contact us through our contact form • Participate in surveys or promotions

The personal information we collect may include: • Name or display name • Email address • Authentication provider identifiers when you choose Google sign-in • Contact information and message contents • JLPT target level, language, timezone, profile settings, newsletter consent, bookmarks, study sessions, quiz scores, flashcard reviews, weak points, mock exam attempts, and synced progress snapshots • Information about your preferences and interests

We may use the information we collect for various purposes, including to:

• Provide, operate, and maintain our website and optional account system • Authenticate users, send confirmation emails, and process password resets • Back up, restore, and sync study progress across devices when you choose to log in • Improve, personalize, and expand our website and learning tools • Understand and analyze how you use our website • Develop new products, services, features, and functionality • Communicate with you for customer service, updates, security notices, and marketing only where permitted • Send requested free materials, newsletters, and contact-form replies • Find, debug, and prevent fraud, abuse, and technical issues

Accounts are optional. You can continue using JLPTBooks.com anonymously with local browser storage. If you create or log in to an account, we store the account profile and selected learning data needed to provide cross-device sync, profile settings, progress backup, and account recovery.

Synced learning data may include versioned progress snapshots, quiz attempts, mock exam attempts, flashcard reviews, bookmarks, weak points, study sessions, study goals, account settings, sync events, avatar files, email preferences, newsletter or lead-magnet signups, and contact messages you submit.

Account data is protected by access controls designed so each logged-in user can access only their own profile and learning data. Public visitors may submit email capture or contact forms, but they cannot read those records through the public website.

We use cookies for essential website functionality. With your explicit consent, we use Google Analytics 4 (GA4) to understand how visitors use our site. When you consent to analytics, the following data may be collected and sent to Google: • Page views (URLs visited, page titles) • Affiliate link clicks (book title, level, click location) • Search queries and results counts • Study tool usage (which tools you use, completion status) This data is processed by Google according to their privacy policy. No personally identifiable information is collected without your consent.

We use your browser local storage to save study progress, quiz scores, flashcard progress, bookmarks, theme preferences, and language settings. Anonymous local data stays on your device and is not synced to our account database unless you create or log in to an account and choose to sync. We do not delete your local data after sync; the account copy is an additional backup.

JLPTBooks.com participates in the Amazon Associates Program, an affiliate advertising program. When you click 'Buy Now' links on our site, you'll be directed to Amazon. If you make a purchase, we may earn a small commission at no additional cost to you. These commissions help support our free educational content.

Our website contains links to third-party websites including Amazon and book publishers. We have no control over and assume no responsibility for the content, privacy policies, or practices of any third-party sites. We encourage you to read the privacy statements of each website you visit.

We use administrative, technical, and physical security measures to protect your personal information.

While we have taken reasonable steps to secure the information you provide to us, please be aware that no security measures are perfect or impenetrable, and no method of data transmission can be guaranteed against interception or other types of misuse.

Our website is not directed to children under 13 years of age. We do not knowingly collect personal information from children under 13.

If you are under 13, please do not provide any personal information on this website.

You can use JLPTBooks.com without an account, clear local browser data in your browser settings, unsubscribe from marketing emails, update profile settings, or sign out at any time. Password reset links and confirmation links are sent only when requested through the account flow.

To request access, correction, export, or deletion of account, email subscription, or contact-message data, contact us through the site contact page. Some records may be retained where needed for security, abuse prevention, legal compliance, or backup integrity.

We may update our Privacy Policy from time to time. We will notify you of any changes by posting the new Privacy Policy on this page and updating the "Last Updated" date.

You are advised to review this Privacy Policy periodically for any changes.