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Privacy Policy

Last Updated: April 10, 2025

Introduction

Welcome to our app (hereinafter “we,” “us,” or “the App”). We highly value your privacy and the protection of your personal information. This Privacy Policy explains how we collect, use, store, and safeguard your personal information, as well as your rights in relation to that information. Please read this Privacy Policy carefully before using the App.

Information We Collect

1. Information You Provide Voluntarily

  • Usage Records: We record the number and frequency of cards you generate to manage usage limits for free and subscribed users.
  • Subscription Information: When you purchase a subscription, we collect transaction-related details such as subscription status and expiration date.

2. Automatically Collected Information

  • Device Information: We may collect basic details about your device, such as device type and operating system version, to optimize the App experience.
  • Usage Data: We collect data on how you use the App, including feature usage frequency and crash reports.
  • Network Status: The App monitors your network connection status to verify purchase receipts when a network is available.

How We Use Information

We use the collected information primarily to:

  1. Provide Core Services: Generate knowledge cards, save user settings, and manage user-created content.
  2. Improve the Product: Analyze user behavior to enhance features and user experience.
  3. Manage Subscriptions: Verify purchase status, manage subscription cycles, and grant corresponding service permissions.
  4. Technical Support: Resolve issues encountered by users during App use.
  5. Compliance: Fulfill legal and regulatory requirements.

API Service Usage

The App uses the DeepSeek API service to generate knowledge card content. When you use this feature:

  1. We send your input topics and category information to the API provider.
  2. The API provider may process this information according to its own Privacy Policy.
  3. We do not transmit any personally identifying information to the API provider.

Data Storage

  1. Local Storage: Most user data (e.g., usage records, created cards) is stored locally on your device.
  2. Secure Storage: Sensitive information (e.g., usage counts, verification data) is stored securely using Keychain.
  3. Data Backup: The App does not automatically back up your data to the cloud.

Data Sharing

We do not sell or share your personal information. We may share your information only in the following circumstances:

  1. Service Providers: We use Apple’s In‑App Purchase service to process subscription transactions.
  2. API Services: As described above, we use the DeepSeek API to generate card content.
  3. Legal Requirements: When required by law or regulation.
  4. Protection of Rights: To protect our legal rights or prevent fraud.

Changes to This Privacy Policy

We may update this Privacy Policy from time to time. For any material changes, we will notify you within the App and update the “Last Updated” date. We encourage you to review this Privacy Policy periodically to stay informed about how we protect your information.

Contact Us

If you have any questions or suggestions regarding this Privacy Policy, please contact us at:

By using the App, you agree to the data practices described in this Privacy Policy. If you do not agree with this Privacy Policy, please do not use the App.

Thank you for trusting and using our app!