Contact Us
Have a question, found a bug, or want to suggest a feature? We'd love to hear from you. Reach us by email and we'll respond within 48 hours.
Email Us
Our primary support channel. We typically respond within 48 hours.
What Can We Help With?
Bug Reports
Found something broken? Let us know what happened, what you expected, and which browser or device you were using.
Send email →Feature Requests
Have an idea for a new feature or improvement? We read every suggestion and use them to guide our roadmap.
Send email →Account Issues
Problems signing in, account deletion requests, data export requests, or other account-related concerns.
Send email →Frequently Asked Questions
Is JLPT Mastery free to use?
Yes. JLPT Mastery is currently free with full access to adaptive practice, mastery tracking, and all five JLPT levels. We may introduce optional paid plans with additional features in the future.
How do I delete my account and data?
You can delete your account from the account settings page in the dashboard. This permanently removes all your data including practice history, mastery states, and personal information within 30 days.
Can I export my study data?
Yes. Contact us at support@jlptmastery.com with a data export request and we will provide a copy of all your personal data.
Is JLPT Mastery affiliated with the official JLPT exam?
No. JLPT Mastery is an independent study tool and is not affiliated with, endorsed by, or officially connected to the Japan Foundation or Japan Educational Exchanges and Services (JEES).
Other Resources
Before reaching out, you might find what you need in these pages:
- Privacy Policy — How we handle your data
- Terms of Service — Usage rules and legal information
- JLPT Level Guides — Detailed guides for each JLPT level