Introduction

JapMiner (“we,” “our,” or “us”) is committed to protecting your privacy. This Privacy Policy explains how we collect, use, disclose, and safeguard your information when you use our mobile application and related services (collectively, the “Service”).

By using JapMiner, you agree to the collection and use of information in accordance with this policy.

Information We Collect

Information You Provide

Account Information: Email address, display name, and authentication credentials when you create an account.
User Content: Images you capture for text extraction, flashcards you create, and study progress data.
Payment Information: When you subscribe to Pro, payment processing is handled by Apple (App Store) or Google (Play Store). We do not store your payment card details.

Automatically Collected Information

Device Information: Device type, operating system version, and unique device identifiers.
Usage Data: App features used, study session durations, and interaction patterns to improve our service.
Crash Reports: Technical data to diagnose and fix issues.

How We Use Your Information

We use your information to:

Provide and maintain the Service
Process your images through AI to generate flashcards
Sync your data across devices
Send important updates about your account or the Service
Improve and personalize your learning experience
Analyze usage patterns to enhance our features
Prevent fraud and ensure security

AI Processing & Third-Party Services

Images you capture are processed using AI services (including Anthropic's Claude) to extract Japanese text and generate flashcard content. These images are:

Transmitted securely using encryption
Processed only for the purpose of generating your flashcards
Not stored by AI providers beyond the processing duration
Not used to train AI models

We also use the following services:

Supabase: For authentication and data storage
RevenueCat: For subscription management
PostHog: For privacy-friendly analytics
Sentry: For error tracking

Data Retention

We retain your data for as long as your account is active or as needed to provide the Service. You can request deletion of your account and associated data at any time through the app settings or by contacting us.

Data Security

We implement appropriate security measures including:

Encryption in transit (TLS/SSL)
Encryption at rest for stored data
Regular security audits
Access controls and authentication

Your Rights

You have the right to:

Access your personal data
Correct inaccurate data
Delete your account and data
Export your flashcard data
Opt out of marketing communications

Children's Privacy

JapMiner is not intended for children under 13. We do not knowingly collect information from children under 13. If you believe we have collected such information, please contact us immediately.

Changes to This Policy

We may update this Privacy Policy from time to time. We will notify you of any changes by posting the new policy on this page and updating the “Last updated” date. Continued use of the Service after changes constitutes acceptance of the updated policy.

Contact Us

If you have questions about this Privacy Policy or our data practices, please contact us at:

Email: privacy@japminer.com