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Privacy Policy

Last Updated: January 6, 2026

1. Introduction

Welcome to Chrono Cards. We respect your privacy and are committed to protecting your personal data. This privacy policy explains how we collect, use, and safeguard your information when you use our historical card collection app.

2. Information We Collect

Account Information

If you create an account, we collect your email address and name. Guest users are assigned an anonymous identifier stored locally on your device.

Usage Data

We collect information about your interactions with the app, including: cards you collect, your progress (XP, achievements, streaks), swipe history, and app settings preferences.

Profile Information

You may optionally provide a display name and avatar image for your profile.

Device Information

We may collect device identifiers and notification permissions if you enable daily reminders.

3. How We Use Your Information

We use your information to:

  • Provide core app functionality (saving cards, tracking progress)
  • Sync your collection and progress across devices
  • Award achievements and maintain streaks
  • Send daily card reminders (if enabled)
  • Process in-app purchases and subscriptions
  • Improve the app experience and add new features

4. Data Storage & Security

Your data is stored securely in a PostgreSQL database hosted on the Anything platform. We implement industry-standard security measures to protect your information. Guest IDs are stored locally on your device and are not transmitted unless you choose to create an account.

5. Third-Party Services

Chrono Cards uses the following third-party services:

  • RevenueCat: For managing in-app purchases and subscriptions
  • Anything Platform: For hosting and database services
  • Wikipedia: External links to card sources (no data shared)

Each service has its own privacy policy governing their use of your information.

6. Your Rights

You have the right to:

  • Access the personal data we hold about you
  • Request correction of inaccurate data
  • Request deletion of your account and associated data
  • Opt out of daily notifications at any time
  • Export your collection data

To exercise these rights, please contact us at the email address below.

7. Data Retention

We retain your data for as long as your account is active or as needed to provide services. If you delete your account, we will remove your personal data within 30 days, except where we are required to retain it for legal purposes.

8. Children's Privacy

Chrono Cards is intended for users aged 13 and older. We do not knowingly collect personal information from children under 13. If you believe we have collected information from a child under 13, please contact us immediately.

9. Changes to This Policy

We may update this privacy policy from time to time. We will notify you of significant changes by updating the "Last Updated" date and, if appropriate, providing notice within the app. Your continued use of Chrono Cards after changes constitutes acceptance of the updated policy.

10. Contact Us

If you have questions or concerns about this privacy policy or our data practices, please contact us at:

gabekubalak@gmail.com

For general support inquiries, you may also reach out through the app's settings page.

This privacy policy is effective as of the date listed above and applies to all users of Chrono Cards. By using the app, you agree to the collection and use of information in accordance with this policy.