Privacy Policy - LexiBrain: Hidden Words

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1. Summary of Data Collection & Permissions

Welcome to LexiBrain: Hidden Words ("we," "our," or "us"). We are committed to protecting your privacy and providing a secure, engaging word puzzle and vocabulary experience. This Privacy Policy outlines how our mobile application handles user information and complies with the Google Play Developer Program Policies, GDPR, CCPA/CPRA, and COPPA.

✓ No Personal Account Required: You can play and enjoy all core features without registering an account.
✓ Local On-Device Storage: Your puzzle progress, high scores, coins, unlocked categories, and customized settings are stored locally on your device via Android's local Room database and SharedPreferences.
✓ No Sensitive Personal Data Collection: We do not collect, sell, or rent your real name, physical address, phone number, contacts, or biometric data.

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2. Information Collected and Used

A. Information Stored Locally on Your Device

Game Progress & State: Levels cleared, words discovered, star ratings, hints remaining, and streak stats.
Preferences: Sound/Vibration toggles, selected board theme style, and accessibility font sizing.

B. Third-Party Services & Automated Data Collection

Our game uses third-party developer libraries to enhance stability, provide vocabulary definitions, and serve advertisements. These service providers may collect non-identifiable technical data:

Google Play Services / Google Mobile Ads (AdMob)

Purpose: Serving banner, interstitial, and rewarded video ads to keep the game free to play.

Data Collected: Advertising ID (GAID), device brand/model, operating system version, coarse IP location, and ad interaction telemetry.

Privacy Policy: Google Privacy Policy & Google AdMob Policy

Free Dictionary API (api.dictionaryapi.dev)

Purpose: Providing real-time word definitions, parts of speech, and pronunciations when looking up vocabulary memory cards.

Data Collected: Word query string sent over secure HTTPS. No personal identifiers are attached to these dictionary lookup queries.

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3. How We Use Information

We use non-personal technical information strictly to:

Deliver smooth gameplay, word generation, and level progression.
Enable rewarded video ads for optional in-game hints and rewards.
Provide real-time and offline vocabulary learning definitions.
Identify and fix app crashes, performance bottlenecks, and bugs.

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4. Children’s Privacy (COPPA & Families Policy Compliance)

LexiBrain: Hidden Words is designed as a family-friendly educational word puzzle game.

We do not knowingly solicit or collect personally identifiable information from children under the age of 13 (or the applicable age in your jurisdiction).

If ads are served to younger audiences, they are served via Google AdMob in compliance with Google Play's Families Policy and COPPA guidelines (utilizing contextual, non-personalized advertising tags).

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5. Third-Party Disclosure & Sale of Data

✓ No Sale of Data: We do not sell, trade, or monetize your personal data to data brokers or third parties.
✓ Service Providers: Data is shared only with trusted infrastructure and ad partners (like Google AdMob) strictly for running the core app features.
✓ Legal Compliance: We may disclose non-personal data only if required by law or to protect our legal rights.

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6. Data Security & Storage

✓ Data Transmission: All external network requests (such as dictionary lookups and ad serving) are encrypted in transit via standard HTTPS/TLS.
✓ Data Retention & Reset: Because game progress is stored locally on your device, clearing the app’s data or uninstalling the app permanently removes your local progress and preferences.

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7. Your Rights (GDPR / CCPA / Regional Rights)

Depending on your jurisdiction, you have the following rights:

✓ Opt-out of Personalized Ads: You can reset or limit your Google Advertising ID anytime via your Android device settings (Settings > Google > Ads > Delete/Reset Advertising ID).
✓ Data Erasure: You can clear all game data by clearing the app cache/storage in your device's application settings.
✓ Inquiries: You can contact us at any time to ask questions regarding privacy practices.

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8. Changes to This Privacy Policy

We may update this Privacy Policy from time to time to reflect changes in our practices or regulatory standards. The updated date at the top of this page will reflect the latest revision.

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9. Contact Us

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

Developer / Publisher: Medhastone
Email: medhastone@gmail.com
Application: LexiBrain: Find Hidden Words