Privacy Policy

Effective Date: August 17, 2025

Re:Peat ("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 Chrome extension service.

1. Information We Collect

1.1 Data Collection Overview

We collect(or use) the following types of information to improve user experience and maintain the quality of our product:

• User Identification Data: Unique user IDs generated for subscription management and email addresses for account recovery and updates(collect)
• Flashcard Content: Your personal study materials, decks, and cards(use)
• Subscription Status: Premium membership status and billing information(collect)
• Device Usage Data: Number of devices/browser instances using the same premium account(collect)

All data collection is fundamental to the extension's main functions and is collected solely to deliver and improve our service.

2. How We Store Your Information

2.1 Chrome Sync Storage

Your flashcard content and personal study data are stored using Chrome's built-in sync functionality. This data remains private to your Google account and follows Google Chrome's data synchronization guidelines.

2.2 External Database Storage

For transparency, we use Upstash Redis as our external database service to store:

• User ID to subscription mappings
• Premium access verification data
• Device usage tracking for premium accounts

Stripe is the third-party service we use for payment processing. All payment information is handled securely by Stripe and is subject to their privacy policy. Our usage of email addresses for account recovery and updates is facilitated by extracting user email addresses from Stripe.

Important: We strongly recommend users follow Google Chrome's guidelines regarding sync data management and account security. Users who wish to know more about payment processing can refer to Stripe's privacy policy. Here: https://stripe.com/privacy

3. How We Use Your Information

3.1 Service Delivery Only

We use your information exclusively for providing our spaced repetition learning service. Specifically:

• Enabling premium features for authenticated users
• Synchronizing your study data across devices
• Managing subscription status and billing
• Preventing unauthorized premium access sharing
• Communicating important updates and account-related information

4. Your Rights and Data Control

4.1 Data Deletion

You have complete control over your data:

• Extension Uninstall: Removing the extension will permanently delete all local flashcard data and cannot be recovered unless the extension is installed on another device and synced
• Subscription Data: Your subscription status and user ID will remain in our system to honor any active premium benefits
• Complete Deletion: You may request complete deletion of all data at any time by contacting us

4.2 Legal Obligations

Upon your request for data deletion, we are legally bound to remove all personal information from our systems within 30 days, except where retention is required by law.

4.3 Subscription Management

You can cancel your subscription at any time. Cancellation will:

• Remove premium features from your extension
• Retain your basic flashcard data (subject to Chrome sync limitations)

5. Data Security

We implement appropriate technical and organizational security measures to protect your information against unauthorized access, alteration, disclosure, or destruction. It is our responsibility to ensure the security of your data and properly handle cases of potential breaches with the utmost care.

6. Third-Party Services

We utilize the following third-party services:

• Google Chrome Sync API: For flashcard data synchronization
• Stripe: For payment processing (subject to Stripe's privacy policy)
• Upstash Redis: For subscription data storage

7. Changes to This Privacy Policy

We may update this Privacy Policy from time to time. We will notify you of any changes by posting the new Privacy Policy on this page and updating the "Effective Date" above.

8. Contact Information