Ngiemboon Privacy Policy

1. Who this policy applies to

This policy applies to the Ngiemboon mobile app and the public pages on GameboApp. The service is provided by Ngiemboon App.

2. Information we process

• Account information: a Supabase user identifier, Google sign-in identity information made available to the app, email address, and profile fields such as display name, locale, and avatar URL when present.
• Learning data: selected language, course and lesson progress, scores, attempts, completion state, XP/streak-related progress, and lesson activity needed to continue your learning experience.
• Coins and access: coin balance, coin transactions, rewarded-coin events where offered, content unlocks, access level, and related timestamps.
• Purchase records: Google Play product identifiers, purchase/order identifiers or tokens, quantity, verification/credit status, and the coin amount associated with a purchase. We do not receive your full payment-card number from Google Play.
• App operations: settings, access status, limited usage counters, app/content version state, and diagnostic information needed to operate, secure, and troubleshoot the service.
• Support communications: information you voluntarily provide when contacting support.

3. How we use information

• authenticate users and maintain accounts;
• save learning progress and synchronize it across sessions;
• deliver lessons, audio, images, and unlocked content;
• verify Google Play purchases and credit virtual coins;
• operate rewarded features and advertising where enabled;
• prevent duplicate welcome-bonus claims, abuse, fraud, and unauthorized access;
• provide support, maintain service reliability, and comply with applicable legal obligations.

4. Service providers

We use service providers that process information on our behalf or as independent platform providers for the functions they provide. Current core providers include:

• Supabase for authentication, database services, server functions, and storage;
• Google for Google Sign-In and Google Play Billing;
• Google Mobile Ads / AdMob for advertising or rewarded-ad features where enabled.

Those providers process data according to their own terms and privacy practices. We do not sell users' personal information.

5. Advertising and rewarded features

Where advertising is enabled, advertising providers may process device or advertising-related information needed to deliver, limit, measure, secure, or personalize ads subject to platform settings, consent requirements, and applicable law. Rewarded ads, when offered, are optional and may grant virtual coins after a qualifying completion.

6. Security

We use HTTPS in production, authenticated access controls, server-side authorization for privileged operations, and server-only secrets for administrative APIs. No method of transmission or storage is completely risk-free, but we apply controls intended to reduce unauthorized access and misuse.

7. Retention and account deletion

When a user permanently deletes an account, the normal account profile, learning progress, coin balance/transactions, unlock records, purchase records stored in our application database, settings, and other user-owned application rows are deleted through the account-deletion process, subject to limited information that must or may lawfully be retained.

To prevent repeated abuse of the one-time 30-coin welcome bonus, we may retain a minimal pseudonymous anti-abuse marker after account deletion. That marker is a keyed cryptographic fingerprint associated with the Google identity, together with limited claim metadata such as provider, amount, version, and claim time. It does not store the deleted account's email, display name, progress, or former Supabase user ID and is used only to determine whether that identity already received the welcome bonus.

Google and other platform providers may separately retain transaction or account records under their own legal obligations and policies.

Read the account deletion instructions.

8. Your choices and rights

Depending on your location, you may have rights to request access, correction, deletion, restriction, or other controls over personal information. You can update available account settings in the app, permanently delete your account in-app, or contact us at support@ngiemboonapp.com.

9. International processing

Our service providers may process data in countries other than your own. Where applicable, such processing is subject to the safeguards and legal mechanisms provided by those providers and applicable law.

10. Changes to this policy

We may update this policy as the app changes. The date at the top of this page will be updated when material changes are published.