# Privacy Policy for Checkers Hub
**Last Updated: November 6, 2026**
## Introduction
Checkers Hub ("we", "our", "us") is committed to protecting your privacy. This Privacy Policy explains how we collect, use, and safeguard your information when you use our mobile application.
## Information We Collect
### Account Information
- **Authentication data**: We use Firebase Authentication to manage user accounts. You may sign in anonymously or with an email address.
- **Username**: A display name you choose or that is auto-generated.
- **Profile information**: Avatar selection, nationality (auto-detected or manually set), and game preferences.
### Gameplay Data
- **Game statistics**: Wins, losses, draws, ELO rating, streaks, and game history.
- **Game records**: Moves and board states from completed games.
- **Time controls and game modes**: Your preferred settings.
### Technical Data
- **Device information**: Device type and operating system version, used to optimize app performance.
- **Push notification tokens**: If you enable push notifications, we store your FCM token to deliver notifications.
### Usage, Diagnostics and Advertising Data
We and our service providers automatically collect the following when you use the app:
- **App activity**: For each day you use the app, how many times you opened it, how many online games, games against the computer, puzzles and correspondence moves you played, and whether you joined online matchmaking. We also store when you last opened the app, your device's time zone and language, and when you open a push notification.
- **Analytics events (Google Firebase Analytics)**: Events such as completing the first-time setup, starting and finishing games, solving puzzles, opening push notifications and seeing ads, together with an app instance ID, device model, operating system, app version, language and approximate country.
- **Crash reports (Google Firebase Crashlytics)**: If the app crashes, a report with the error details, device model, operating system, app version and an installation ID.
- **Advertising data (Google AdMob)**: To show ads, Google AdMob may collect your device's advertising identifier (where your device settings allow it), IP address, device information and how you interact with ads.
## How We Use Your Information
We use the information we collect to:
- Provide and maintain the app and its features.
- Match you with opponents in online multiplayer games.
- Track and display your game statistics, rankings, and leaderboard positions.
- Manage friend lists, direct messages, and friend challenges.
- Deliver push notifications (e.g., game invitations, friend requests).
- Award in-app currency (gems) and manage your inventory.
- Improve the app experience and fix bugs.
- Understand how players use the app (for example, how many new players finish setup and play their first game) using app activity, analytics events and crash reports.
- Show ads through Google AdMob.
## Data Storage and Security
- Your data is stored securely using MongoDB and Firebase services.
- We use industry-standard security measures to protect your information.
- Authentication tokens are used to verify your identity and protect your account.
## Data Sharing
We do **not** sell your personal information to third parties.
Your username, avatar, nationality flag, ELO rating, and league tier are visible to other players during games, on leaderboards, and in friend lists. This is necessary for the multiplayer experience.
## Third-Party Services
We use the following third-party services:
- **Firebase** (Google): Authentication, push notifications, analytics (Firebase Analytics) and crash reporting (Firebase Crashlytics).
- **Google AdMob**: To display advertisements. AdMob may collect device identifiers and usage data. See [Google's Privacy Policy](https://policies.google.com/privacy).
Some of these providers, such as Google, may process data outside the EEA under appropriate safeguards such as the EU Standard Contractual Clauses.
## Children's Privacy
Checkers Hub is not directed at children under 13. We do not knowingly collect personal information from children under 13. If you believe a child has provided us with personal data, please contact us so we can delete it.
## Your Rights
You have the right to:
- **Access** your data through your in-app profile.
- **Update** your username, avatar, and nationality at any time.
- **Delete** your account and all associated data through the Settings page in the app. Account deletion is permanent and cannot be undone.
### EEA, UK and Switzerland
Apex Consulting AB is the data controller for the app. We process your data to provide the app to you (performance of a contract), for our legitimate interests in measuring, securing and improving the app, and with your consent where it is required, such as for push notifications. You have the right to access, correct, delete or export your data, to object to or restrict processing, and to withdraw your consent at any time. Contact us at info@apexconsulting.se to use these rights. You may also lodge a complaint with the Swedish Authority for Privacy Protection (IMY).
## Data Retention
- Active account data is retained as long as your account exists.
- When you delete your account, all associated data (profile, statistics, game history, friend connections, league memberships and daily app activity) is permanently removed.
- Analytics events and crash reports are kept by Google for the retention period set in our Firebase project (analytics events for up to 14 months, crash reports for 90 days).
## Changes to This Policy
We may update this Privacy Policy from time to time. Changes will be reflected by updating the "Last Updated" date at the top of this document.
## Contact Us
If you have questions or concerns about this Privacy Policy, please contact us at:
**Email**: info@apexconsulting.se
