Privacy Policy

Last Updated: September 11, 2026

Welcome to JLPT Progress ("we," "our," or "us"), an application operated under Hamro Nihongo. We are dedicated to helping Japanese language learners systematically track, analyze, and optimize their JLPT preparation while respecting and safeguarding user privacy. This Privacy Policy details how we collect, use, disclose, and protect your information when you use the JLPT Progress mobile application, web platform, and related tracking services (collectively, the "Service"), accessible at https://jlpt-progress.hamronihongo.com.

By downloading, accessing, or using our platform or mobile app, you consent to the collection and use of information in accordance with this policy. If you do not agree, please refrain from using the Service.

1. Information We Collect

To deliver personalized study tracking, target projections, and preparation insights, we may collect the following types of information:

• Account & Profile Information: Details submitted during registration (e.g., full name, email address, profile picture, primary JLPT target level, and social/Google authentication details).
• Study Progress & Analytics Data: Tracked study hours, mock test scores, section completion metrics (Vocabulary, Grammar, Reading, Listening), milestone logs, study streaks, and projected score trends across levels (N5 to N1).
• Device & App Usage Data: Device hardware model, operating system, unique device identifiers (UDID), app interaction logs, performance diagnostics, and crash reports.
• In-App Purchase & Premium Features Data: Transaction records for advanced analytics unlocks, exportable progress reports, or subscription tiers. Billing is handled securely by platform app stores (Google Play / Apple App Store). We do not store credit card or financial details on our servers.
• Feedback & Support Communications: Analytics suggestions, bug submissions, feature requests, and customer support queries.

2. How We Use Your Information

We utilize the collected information to power, customize, and refine your exam tracking experience:

• Calculate score projections, readiness indicators, and section-by-section mastery breakdowns.
• Synchronize your study logs, milestone history, and goal targets seamlessly across all your active devices.
• Authenticate user credentials and maintain secure cloud backups of progress history.
• Manage subscriptions, process premium features, and issue transaction confirmations.
• Send study streak notifications, milestone reminders, and platform maintenance updates.
• Diagnose software glitches, optimize dashboard loading speeds, and enhance data privacy.
• Prevent unauthorized automated scraping, fraudulent access, and maintain system integrity.

3. Third-Party Services & Data Sharing

We do not sell or rent your personal data. Data is shared exclusively with necessary service infrastructure partners bound by strict privacy terms:

• Cloud Infrastructure & Authentication: Database and hosting services (e.g., Firebase, Supabase, AWS) to securely store user profiles and sync exam data.
• Analytics & Error Reporting: Tools such as Google Analytics for Firebase or Sentry to analyze overall app performance and fix stability issues.
• Payment Processing: Platform app stores (Apple App Store, Google Play Store) handle billing securely under their native privacy policies.
• Legal Obligations: We may disclose information if required by applicable law, court orders, or governmental requests to ensure user safety and legal compliance.

4. Data Security

We enforce technical and administrative safeguards (including end-to-end SSL/TLS encryption for all traffic to `jlpt-progress.hamronihongo.com` and restricted database permissions) to safeguard your progress metrics against unauthorized access, loss, or misuse.

5. User Rights & Control

You retain full control over your study data and account settings:

• Profile & Goal Editing: Update your profile details, target JLPT exam date, and target score levels inside app settings.
• Account & Data Erasure: Permanently delete your account and clear all tracked history by contacting support@hamronihongo.com or using the in-app account deletion option.
• Alert Settings: Manage or disable daily tracking prompts and goal notifications via your mobile device system settings.

6. Data Retention

We store your progress logs and personal profile for as long as your account is active to provide historical score comparison and tracking continuity. Unused accounts requested for deletion will have their underlying personal data scrubbed or anonymized.

7. Children's Privacy

JLPT Progress is intended for language learners of all age groups. Learners under 13 should use the service with parental oversight. We do not knowingly collect personal information from children under 13 without verifiable parental consent. If such data is identified, it will be promptly deleted.

8. Policy Updates

We may update this Privacy Policy periodically to reflect new app features or regulatory changes. Updated versions will be published on this page with a revised date. Continued usage of JLPT Progress following updates signifies agreement to the revised policy.

9. Contact Us

If you have questions or privacy inquiries regarding JLPT Progress, please reach out to us:

This Privacy Policy specifically applies to the JLPT Progress mobile and web platform hosted at jlpt-progress.hamronihongo.com.