Privacy Policy

Last Updated: February 2, 2026

This policy applies to the YouPractice mobile app (iOS and Android) and the YouPractice Chrome extension.

1. Introduction

YouPractice helps you practice languages using YouTube videos through structured listening, speaking, and shadowing exercises. This privacy policy explains how we collect, use, and protect your information across our platforms:

• YouPractice Mobile App Mobile — Available on iOS and Android
• YouPractice Chrome Extension Extension — Available on Chrome Web Store

2. Data We Collect

2.1 Account Information Mobile

When you create an account in the mobile app, we collect:

• Email address — For authentication and account recovery
• User ID — A unique identifier for your account
• Authentication data — Managed securely by our authentication provider (Clerk)

You can also sign in with Apple, in which case Apple may provide your email or a private relay address per your preference.

2.2 Practice Data Both

We collect data about your practice sessions to track progress and improve your experience:

• Practice session statistics (correct/incorrect answers, completion status)
• Video IDs and titles for practice sessions
• Timing information and playback state
• User preferences (theme, difficulty, language settings)
• XP, streak, and level progression data

In the Chrome extension, this data is stored locally on your device. In the mobile app, it is stored both locally and synced to our servers for cross-device access.

2.3 Audio Recordings Mobile

When you use Shadowing or Speaking practice modes, the app records your voice:

• Audio is recorded temporarily for comparison with the original video audio
• Recordings are processed locally on your device for playback comparison
• Audio may be sent to our servers for AI-powered pronunciation assessment
• We do not store your audio recordings permanently or use them for any purpose other than providing practice feedback

2.4 Purchase Information Mobile

If you subscribe to YouPractice Plus or Pro:

• Purchase history and subscription status are managed by Apple (App Store) or Google (Play Store)
• Our payment provider (RevenueCat) processes subscription data to manage your access tier
• We do not have access to your payment card details

2.5 Analytics and Diagnostics Mobile

We collect anonymized analytics and diagnostic data to improve app quality:

Data Type	Purpose	Provider	Linked to You
Crash reports	Fix bugs and improve stability	Sentry	No
Performance data	Optimize app speed and responsiveness	Sentry	No
Feature usage events	Understand which features are used most	Amplitude	No
Device identifier	Aggregate analytics (not used for tracking)	Amplitude	No

2.6 Chrome Extension Data Extension

The Chrome extension stores all data locally on your device using Chrome Storage API and IndexedDB. No personal data is sent to our servers. The only network request is fetching YouTube captions via our backend API, which only transmits the video ID.

3. How We Use Your Data

• Provide the service: Enable practice sessions, track progress, manage subscriptions
• Improve the app: Analyze crash reports and usage patterns to fix bugs and add features
• Communicate: Send push notifications about practice reminders (only with your permission)
• Prevent abuse: Detect and prevent fraudulent use of the service

4. Third-Party Services

YouPractice uses the following third-party services:

Service	Purpose	Data Shared	Privacy Policy
Clerk	Authentication	Email, user ID	clerk.com/privacy
RevenueCat	Subscription management	Purchase history, app user ID	revenuecat.com/privacy
Sentry	Error tracking	Crash data, device info (anonymized)	sentry.io/privacy
Amplitude	Analytics	Feature usage events, device ID (anonymized)	amplitude.com/privacy
YouTube	Video content and captions	Video ID (for caption retrieval)	policies.google.com/privacy

5. Permissions

Mobile App Permissions Mobile

Permission	Why We Need It
Microphone	Record your voice for pronunciation practice in Shadowing and Speaking modes
Speech Recognition	Convert your speech to text for AI conversation practice
Notifications	Send practice reminders and streak notifications (optional)
Internet	Stream YouTube videos, sync progress, and communicate with our servers

Chrome Extension Permissions Extension

Permission	Why We Need It
tabs	Detect when you navigate to YouTube video pages
scripting	Inject the practice overlay into YouTube pages
storage	Save your preferences and practice progress locally
activeTab	Interact with the current YouTube video for practice sessions
host_permissions (*.youtube.com)	Access YouTube pages to provide practice functionality

6. Data Retention and Deletion

Account Deletion Mobile

You can delete your account and all associated data at any time:

1. Open the YouPractice app
2. Go to Profile > Settings > Delete Account
3. Confirm deletion

When you delete your account:

• Your authentication credentials are removed from Clerk
• Your practice history and progress are permanently deleted from our servers
• Your subscription (if active) remains managed by Apple/Google until it expires
• Anonymized analytics data (crash reports, usage events) cannot be linked back to you and is retained for product improvement

Chrome Extension Data Extension

All data is stored locally. To delete it, uninstall the extension or clear site data through Chrome Settings.

Data Retention

• Account data: Retained until you delete your account
• Practice data: Retained until you delete your account or clear local data
• Audio recordings: Temporary, deleted after practice session ends
• Crash reports: Retained for 90 days
• Analytics events: Retained for 12 months in anonymized form

7. Children's Privacy

YouPractice is not directed at children under 13 years of age. We do not knowingly collect personal information from children under 13. 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 delete the information promptly.

8. Data Security

We protect your data using industry-standard measures:

• Encryption in transit: All network communication uses HTTPS/TLS
• Encryption at rest: Sensitive data (auth tokens) stored using device secure storage (Keychain on iOS, Keystore on Android)
• Authentication: Managed by Clerk with secure token handling
• Access control: Server-side data access restricted to authenticated users
• No plain-text storage: Passwords and tokens are never stored in plain text

9. Your Rights

All Users

• Access: View your data in the app (Profile > practice history and stats)
• Delete: Delete your account and all data at any time
• Opt out: Disable push notifications in device settings

GDPR (European Users)

If you are in the European Economic Area, you have additional rights:

• Right to Access: Request a copy of your personal data
• Right to Deletion: Request erasure of your personal data
• Right to Rectification: Correct inaccurate data via app settings
• Right to Data Portability: Request your data in a portable format
• Right to Object: Object to processing of your data
• Right to Withdraw Consent: Withdraw consent at any time

To exercise these rights, contact [email protected]. We will respond within 30 days.

CCPA (California Residents)

If you are a California resident, you have rights under the California Consumer Privacy Act:

• We do not sell your personal information
• We do not share your information with third parties for marketing
• You can request to know what data we have collected about you
• You can request deletion of your data

10. Changes to This Policy

We may update this privacy policy from time to time. When we make material changes, we will notify you through the app or by updating the "Last Updated" date at the top of this page. Continued use of YouPractice after changes constitutes acceptance of the updated policy.

11. Contact Us

If you have questions or concerns about this privacy policy:

• Email: [email protected]
• GitHub: github.com/banguyen93/YouPractice/issues
• Response Time: We aim to respond within 48 hours

Compliance Summary

✓ Apple App Store Guidelines — Privacy manifest and nutrition labels aligned

✓ Google Play Data Safety — Data collection fully disclosed

✓ GDPR Compliant — European data protection requirements met

✓ CCPA Compliant — California consumer privacy rights respected

✓ COPPA Compliant — Children's privacy protected

✓ No User Tracking — No cross-app or cross-site tracking

---

Document Version: 2.0 | Effective Date: February 2, 2026 | Last Reviewed: February 2, 2026