Privacy Policy — Just Blackjack

This Privacy Policy explains how Just Blackjack (the “App”) collects, uses, shares, and deletes information. If you do not agree with this policy, please do not use the App.

What data we collect

Data you provide

• Profile information (optional): username and (if you choose) a profile photo/avatar.
• Social features (if you use them): friend list and friend requests.
• Support communications: information you send us if you contact support (for example, your email address and the contents of your message).

Data created by your use of the App

• Game progress & stats: gameplay-related information such as statistics and in-game balances (e.g., wallet/chips), and related progress.
• Local settings: preferences stored on your device (for example, app settings).

Data collected automatically

• Authentication identifiers: when you sign in, we use Firebase Authentication which assigns/uses a user identifier (UID). The App may use anonymous sign-in and/or sign-in providers (e.g., Google / Apple) depending on what you choose.
• Push notification token (if enabled): if push notifications are enabled, Firebase Cloud Messaging may provide a device token to deliver notifications.
• Local network discovery data (local play): when you use local multiplayer features, the App uses local network discovery (e.g., Bonjour/mDNS) to find nearby players. This involves using your local network and device connectivity information on your local network.
• Ad-related data (if ads are enabled): when showing ads via Google Mobile Ads (AdMob), ad providers may collect device information (such as advertising identifiers and IP address) to provide and measure ads, subject to their policies and your device settings.

How we use data

• Provide the App’s features (gameplay, multiplayer, local play, profiles, friends).
• Store and sync your account-related data across sessions/devices (when applicable).
• Maintain safety and integrity (e.g., prevent abuse, debug issues).
• Deliver optional notifications (if enabled).
• Show and measure ads (if enabled) and support in-app purchases (if used).

Where data is stored

The App uses Firebase services (Google) for core backend functionality. Depending on features you use, your data may be stored in:

• Firebase Authentication (account identity and UID)
• Cloud Firestore (profile, wallet/balance, stats, friends, friend requests, and related game data)
• Firebase Cloud Messaging (device token for notifications, if used)

Some preferences are stored locally on your device (e.g., via SharedPreferences).

Who can access data (sharing and disclosure)

We do not sell your personal data.

Your data may be accessed by:

• You: through the App interface (to the extent the App exposes your data).
• Other users: limited social data (e.g., your username/profile in friend-related contexts) when you use social features.
• Service providers that power the App:
  • Google Firebase (Authentication, Firestore, Cloud Messaging)
  • Google Mobile Ads / AdMob (if ads are enabled)
  • App stores / payment processors (Apple App Store / Google Play) for in-app purchases and subscription/payment handling (we do not receive your full payment card details)
  • Sign-in providers (Google / Apple) if you choose those sign-in methods
• Legal/Compliance: we may disclose information if required by law, regulation, legal process, or to protect rights, safety, and security.

For details on how these third parties process data, please refer to their privacy policies: Google Privacy Policy.

Ads and tracking choices

If ads are enabled in your build of the App, ads may be provided via AdMob. Ad providers may use device identifiers and similar signals to measure and personalize ads, subject to your platform and regional laws.

You can often control ad personalization via:

• iOS: Settings → Privacy & Security → Tracking (and ad-related settings)
• Android: Settings → Google → Ads (and related privacy controls)

Data retention

We keep data only as long as needed to provide App functionality and for legitimate purposes such as security and compliance. You can request deletion at any time (see below).

Account and data deletion

In-app deletion (recommended)

The App includes a Delete account option in Settings. When you confirm deletion, the App attempts to permanently delete:

• Your Firestore user document (profile, username/photo, wallet/balance, statistics, and other account data stored under your user record)
• Your friend requests (sent and received)
• Removal of your UID from other users’ friends lists
• Local app data stored on-device (e.g., SharedPreferences)
• Your Firebase Authentication account

If deletion fails or you need help

If deletion fails (for example, due to connectivity/authentication issues) or you cannot access the App, you can request help via the contact method listed on the App’s store listing. When contacting support, include:

• Your username (if set)
• Your approximate account creation date (if known)
• The platform (iOS/Android)

Security

We use reasonable technical measures to protect data (including industry-standard cloud security provided by Firebase). No method of transmission or storage is 100% secure; we cannot guarantee absolute security.

Children’s privacy

The App is not intended for children under 13 (or the minimum age required in your country). If you believe a child has provided personal data, please contact us so we can delete it.

International transfers

If you use the App, your data may be processed and stored in countries other than your own (for example, where Firebase infrastructure is located). We rely on service providers’ transfer mechanisms and safeguards where applicable.

Changes to this policy

We may update this Privacy Policy from time to time. We will update the “Effective date” and, if changes are material, we may provide additional notice in the App or via the store listing.

Contact

For privacy questions or requests, contact us using the support contact listed on the App’s App Store / Google Play store page.