QuessPRO (QuickGuess Pro) – Privacy Policy

Effective date: November 15, 2025 • Developer: MangaSaYambon

This Privacy Policy describes how the QuessPRO (also known as "QuickGuess Pro") mobile application ("QuessPRO", "the App", "we", "us") collects, uses, and protects information.

1. Who we are

This policy covers the QuessPRO (QuickGuess Pro) app published by MangaSaYambon.
Contact email: quickguessgame@gmail.com (also listed on Google Play).
You may also reach us through the in-app support link or publisher email shown in the store listing.

2. What data we collect

QuessPRO is primarily an offline game. We collect only the data necessary to provide optional online features:

A) Account and authentication

Google Account profile data (display name, email, Google UID) via Firebase Authentication.
Your Firebase user ID (App UID).

B) Gameplay and content you create

Custom word lists (titles and words) for Guess, Charades, Yes/No, and Impostor modes. Stored locally and optionally synced to Firestore.

C) App state (paid version)

Username: your chosen display name (optional, stored with your user document).
Note: All game features and content are unlocked in the paid version. No purchase tracking or virtual currency is used.

D) Device session status (one-device policy)

deviceStatus fields: deviceId (Android ID), signedIn (true/false), lastSignInTime (timestamp), deviceActive (true/false). Used to enforce one-device-per-account, support auto-logout after 30 days of inactivity, and improve security.

E) Diagnostics and security

App Check tokens, error logs, and non-identifying analytics to maintain security and reliability.

We do not collect contact lists, precise location, audio recordings, photos, SMS, sensitive personal data, payment information, purchase history, virtual currency, gift transaction data, or coin balances (these features are not available in the paid version).

3. How we use your data

Sign you in and sync your data across the devices you own.
Store and sync custom word lists you choose to upload.
Sync your username across devices (if you set one).
Enforce one-device-per-account, auto-logout stale sessions, and prevent abuse.
Protect our backend (Firebase App Check) and improve stability.

4. Legal basis

We process data based on your consent (sign-in and cloud sync), performance of a contract (delivering requested features), and legitimate interests (security, fraud prevention, service improvement).

5. Where we store data

Data is stored in Google Cloud Firestore (region determined by Firebase) and on your device's local storage for offline access.

6. Sharing and third parties

Firebase Authentication (Google) – identity management.
Google Cloud Firestore – data sync and storage.
Play Integrity / App Check – protect resources from non-legitimate clients.
Google Play Services – for app functionality and In-App Review (if used).

We do not sell personal information. Data is shared only as required to operate these services or comply with legal obligations.

7. Retention

Account data remains while your account is active. Device session data auto-expires after 30 days of inactivity.
Local cache is kept for offline use and can be cleared by you (e.g., through app data reset).
Upon account deletion or request, we remove or anonymize associated data subject to legal obligations.

8. Your choices and controls

Play offline without signing in (cloud sync disabled).
Create, edit, and delete custom word lists.
Sign out anytime to clear the active session and stop syncing.
Request access, correction, or deletion of cloud data by emailing us with your account email and (if available) Firebase UID.

9. Security

We use Firebase Authentication, Firestore security rules, App Check (Play Integrity), HTTPS in transit, and Google Cloud encryption at rest. While no system is 100% secure, we take reasonable measures to protect your data.

10. Children's privacy

QuessPRO targets general audiences and is not specifically directed to children. If you are under the age threshold in your country (typically 13 or 16 depending on jurisdiction), use the app only with a parent or guardian's permission and in compliance with platform policies. If a child provides personal data without consent, contact us to remove it.

11. International transfers

Your data may be processed on servers outside your country using Google's infrastructure and safeguards.

12. Changes to this policy

We may update this policy for new features, legal requirements, or security improvements. Material changes will be communicated via the app or store listing. Continued use after updates signifies acceptance.

13. Contact

For privacy inquiries or data requests, email quickguessgame@gmail.com and include your account email plus (if available) your Firebase UID.

Summary

QuessPRO collects only the information necessary to sign you in, sync your content (custom words, username), and protect the service. All game features are unlocked in the paid version—no purchases, coins, or virtual currency are used. You control whether to sign in and what to sync. We never sell your data.