Privacy Policy

1. Introduction

Welcome to AnkiBoost ("we," "our," or "us"). We respect your privacy and are committed to protecting your personal information. This Privacy Policy explains how we collect, use, disclose, and safeguard your information when you use the AnkiBoost mobile application and web service (the "App").

By downloading, accessing, or using our App, you agree to the practices described in this policy. If you do not agree with this policy, please do not access or use our App.

2. Developer Information

• App Name: AnkiBoost
• Developer: AnkiBoost
• Contact: [email protected]
• Website: https://ankiboost.com

3. Information We Collect

3.1 Account Information

When you create an account, we collect:

• Email Address — Used for account registration and authentication.
• Display Name — If provided through third-party sign-in services.
• Third-Party Identifiers — When you sign in via Apple, Google, or Microsoft, we receive a unique user identifier and, depending on your settings, your name and email address as authorized by you during the sign-in process.

3.2 Learning Data

• Card Review History — Your spaced repetition review records and scheduling data.
• Study Statistics — Session duration, card counts, and learning progress.
• User-Created Content — Decks, cards, and notes you create within the App.

3.3 Device & Diagnostic Information

• Device Information — Device model, operating system version, and app version for diagnostics and compatibility.
• Anonymous Identifiers — RevenueCat and system frameworks may collect anonymous device identifiers (such as Identifier for Vendor) for subscription management and analytics. We do not collect the Advertising Identifier (IDFA).
• Log Data — Server access logs may include IP addresses, timestamps, and request metadata for security and troubleshooting purposes.

3.4 Subscription Information

• Purchase Receipts — Processed by Apple App Store and RevenueCat for subscription validation.
• Subscription Status — Active, expired, or cancelled status synced via RevenueCat.
• We do not store your payment card details or billing information.

4. How We Use Your Information

We use the information we collect to:

• Provide the Service: Authenticate your identity, manage your account, and deliver core App functionality.
• Cloud Sync: Synchronize your decks, cards, and review progress across devices.
• Study Analytics: Provide personalized study statistics and learning insights within the App.
• Subscription Management: Validate and manage your subscription status.
• Improve the App: Analyze usage patterns to fix bugs and improve features.
• Communication: Send you technical notices, security alerts, and support messages.

5. Legal Basis for Processing (For EEA/UK Users)

If you are in the European Economic Area or United Kingdom, we process your personal data based on:

• Contract Performance: Processing necessary to provide you with the App and its features.
• Legitimate Interests: Improving our services, ensuring security, and preventing fraud.
• Consent: Where you have given explicit consent (e.g., optional analytics).
• Legal Obligation: Where required by applicable law.

6. Third-Party Services

We use the following third-party services, each with their own privacy policies:

Service	Provider	Purpose	Privacy Policy
App Store / StoreKit	Apple Inc.	App distribution, in-app purchases	Apple Privacy Policy
RevenueCat	RevenueCat Inc.	Subscription management and receipt validation	RevenueCat Privacy Policy
Sign in with Apple	Apple Inc.	Authentication	Apple Privacy Policy
Google Sign-In	Google LLC	Authentication	Google Privacy Policy
Microsoft Sign-In	Microsoft Corp.	Authentication	Microsoft Privacy Statement

We do not sell, rent, or share your personal data with third parties for marketing purposes.

7. Data Storage & Security

• Local Storage: Your decks, cards, and review data are stored on your device.
• Cloud Storage: When you sign in, data is synced to our server for cross-device access. Our server is hosted on a VPS located in the United States.
• Subscription Data: Managed by Apple App Store and RevenueCat.
• Encryption: All network communication uses HTTPS encryption. Authentication tokens are stored securely on your device.

We implement reasonable and appropriate security measures to protect your personal information. However, no internet or electronic storage system is 100% secure, and we cannot guarantee absolute security.

8. Data Retention

We retain your personal information only for as long as necessary to fulfill the purposes described in this policy:

• Account Data: Retained while your account is active. Deleted within 30 days of account deletion.
• Learning Data: Retained while your account is active and deleted upon account deletion.
• Server Logs: Retained for up to 90 days for security and troubleshooting, then automatically purged.
• Subscription Records: Retained as required by Apple and RevenueCat for transaction verification.

9. International Data Transfers

Your information may be transferred to and processed in countries other than your country of residence (including the United States, where our server is located). We take steps to ensure that your information receives an adequate level of protection regardless of where it is processed.

10. Your Rights

10.1 General Rights

All users have the right to:

• Access your personal data within the App.
• Export your data (decks and cards).
• Delete your account and all associated data through the account settings in the App.
• Correct inaccurate information in your profile.

10.2 For EEA/UK Users (GDPR)

You additionally have the right to:

• Restrict or object to certain processing of your data.
• Request portability of your data.
• Withdraw consent at any time (where processing is based on consent).
• Lodge a complaint with a supervisory authority.

10.3 For California Residents (CCPA/CPRA)

You have the right to:

• Know what personal information is collected, used, shared, or sold.
• Delete personal information held by us.
• Opt-out of the sale of personal information. We do not sell your personal information.
• Non-discrimination for exercising your rights.

10.4 How to Exercise Your Rights

To exercise any of these rights, you may use the in-app account settings or contact us at [email protected]. We will respond to your request within the timeframe required by applicable law.

11. Account Deletion

You can delete your account directly within the App through Settings > Account > Delete Account. Upon deletion:

• All personal data, decks, cards, and review history will be permanently removed from our servers within 30 days.
• Local data on your device can be removed by uninstalling the App.
• Subscription billing is managed separately by Apple — please cancel your subscription through your Apple ID settings before deleting your account.
• Certain data may be retained if required by law or for legitimate business purposes (e.g., fraud prevention), but only for the minimum period necessary.

12. Children's Privacy

AnkiBoost is not directed at children under the age of 13 (or 16 in the European Union). We do not knowingly collect personal information from children. If you are a parent or guardian and believe your child has provided us with personal information, please contact us at [email protected], and we will take steps to delete such information.

13. Changes to This Privacy Policy

We may update this Privacy Policy from time to time. When we make changes, we will update the "Effective Date" at the top of this policy. Material changes will be communicated through an in-app notification. Continued use of the App after changes constitutes acceptance of the updated policy.

14. Contact Us

If you have any questions or concerns about this Privacy Policy, please contact us at:

[email protected]