Privacy Policy & Data Compliance Statement

Welcome to the official Privacy Policy for Vocabulary: Learn Words (developed and published by Edu Reminder Ltd.). We are committed to transparency, data minimization, and providing a secure, distraction-free environment for learners worldwide.

1. Overview & Scope

This Privacy Policy explains how Vocabulary: Learn Words handles user information, Android runtime permissions, device storage, and integrations with certified third-party service providers.

By installing, accessing, or using Vocabulary: Learn Words, you acknowledge the practices described in this document.

2. Information We Collect and How We Use It

A. Local User Data (Stored On-Device Only)

The core features of the app store data exclusively within your device's local application storage:

• Learning Progress & SRS Mastery: Word mastery states (known/learning), flashcard swipes, study buckets, and accuracy percentages.
• Custom Stacks & Bookmarks: User-created custom vocabulary collections, custom names, colors, and bookmarked words.
• Study Streaks & Daily Goals: Daily study time targets, streak day counts, and daily reminder preferences.
• Audio & Appearance Settings: Selected TTS voice accent (US, UK, AU, IN), voice gender/persona, speech speed rate, active theme (light/dark/midnight), and card display mode (Visual or Definition cards).

B. Automatically Collected Technical Information (Via Third-Party SDKs)

To provide app stability, subscription management, and optional non-intrusive advertisements, the app integrates industry-standard Google and mobile development SDKs:

• Diagnostic & Crash Logs (Firebase Crashlytics): Anonymous stack traces, device model, operating system version, and performance metrics to troubleshoot and fix software crashes.
• App Analytics (Firebase Analytics): Aggregated, non-personally identifiable usage statistics (such as onboarding completion rates and session durations) to improve app performance.
• In-App Purchases & Subscriptions (RevenueCat & Google Play Billing): Anonymous app user IDs and receipt tokens necessary to validate Pro unlocks and ad-free subscriptions.
• Advertising (Google AdMob): Anonymous advertising identifiers (AD_ID), approximate IP-derived region, and device specifications used to serve compliant banner, interstitial, and rewarded ads to non-premium users.

3. Android System Permissions & Justifications

To deliver its core learning and notification features, Vocabulary: Learn Words requests the following Android system permissions:

4. Third-Party Service Providers

We only partner with trusted industry-leading infrastructure providers that comply with global privacy standards:

1. Google Play Services & Google AdMob:

   • Privacy Policy: https://policies.google.com/privacy
   • Ad Technology Partners: https://policies.google.com/technologies/ads
2. Google Firebase (Analytics, Remote Config & Crashlytics):

   • Privacy Policy: https://firebase.google.com/support/privacy
3. RevenueCat (In-App Subscriptions):

   • Privacy Policy: https://www.revenuecat.com/privacy

5. Children's Privacy (COPPA Compliance)

Vocabulary: Learn Words is designed for general audiences and language learners. We do not knowingly collect, request, or store personally identifiable information from children under the age of 13 (or under 16 in the European Union) in compliance with the Children's Online Privacy Protection Act (COPPA) and GDPR.

If you believe a child has provided personal information to our third-party services, please contact us immediately at support@edureminder.com, and we will promptly delete any associated records.

6. International Privacy Rights (GDPR & CCPA/CPRA)

If you are a resident of the European Economic Area (EEA), United Kingdom, or California, you possess specific statutory rights regarding your data:

• Right to Access & Portability: You have the right to request information about any data processed about you.
• Right to Erasure ('Right to be Forgotten'): You can permanently delete all local application data by clearing app storage in device settings (see our Data Deletion Guide).
• Right to Opt-Out of Tracking: You may reset or disable your Advertising ID (AD_ID) anytime via Android OS Settings > Privacy > Ads.
• Non-Discrimination: We will never penalize or restrict access to features based on the exercise of your privacy rights.

7. Data Security

We implement appropriate technical, administrative, and physical security measures to safeguard your information. All external network communications (such as crash telemetry and purchase verification) are encrypted in transit using Transport Layer Security (TLS/HTTPS). Local progress databases are protected by Android's application sandbox security model.

8. Updates to This Policy

We may periodically update this Privacy Policy to reflect changes in our app features, legal obligations, or Google Play Developer Program Policies. The updated date at the top of this page will indicate when revisions take effect.

9. Contact Us

If you have any questions, suggestions, or privacy requests concerning Vocabulary: Learn Words, please reach out to our dedicated privacy and support team:

• Email: support@edureminder.com
• Company: Edu Reminder Ltd.
• Website: https://www.edureminder.com