Privacy Policy — Chess - Online & Offline

Privacy Policy — Chess - Online & Offline

Last Updated: October 6, 2026

Chess - Online & Offline (“the App”) is developed by Krishna Pariyar (“we”, “us”, or “our”).

This Privacy Policy explains how information is collected, used, stored, and protected when you use the App.

1. Information We Collect

When you use the App, we may collect or process the following information depending on the features you use.

Account Information

For online play, you may create an account using:

• Email and password
• Google Sign-In
• Anonymous authentication

Depending on the sign-in method, Firebase Authentication may process information such as your email address and Firebase user ID.

Player Profile Information

For online chess, the App may store:

• Chess username
• Country
• Country code
• ELO rating
• Number of games played
• Wins
• Losses
• Draws
• Firebase user ID

This information is used to provide your player profile, matchmaking, rankings, ELO ratings, and game statistics.

Online Game Information

For online games, the App may store:

• Player IDs
• Player usernames
• Player ELO ratings at the time of the game
• Chess moves
• Whose turn it is
• Remaining game time
• Game start time
• Game duration
• Game result
• Winner and loser information
• Reason the game ended, such as checkmate, resignation, timeout, or draw
• Information required to support rematches

This information is used to operate online multiplayer chess, maintain game state, calculate ratings and statistics, and provide related functionality.

Chat Information

The App provides chat functionality during online games. Chat messages may be stored in connection with the relevant online game.

Chat information may include:

• Sender's Firebase user ID
• Message content
• Message timestamp
• Game ID

Chat information is used to provide in-game communication and related moderation functionality.

Blocking and Reporting Information

Users may block or report other players.

When a player is blocked, the App may store the blocked player's Firebase user ID in the blocking user's profile so that messages from that player can be hidden.

When a player is reported, the App may store information such as:

• Reporting user's Firebase user ID
• Reported player's Firebase user ID
• Game ID
• Selected report reason
• Report status

Reports are used to support player safety, moderation, and abuse prevention.

2. How We Use Information

Information collected or processed by the App may be used to:

• Create and manage your account
• Provide online multiplayer chess
• Match players for online games
• Maintain ELO ratings
• Display player rankings and statistics
• Maintain online game state
• Process chess moves
• Calculate game results
• Provide rematch functionality
• Provide in-game chat
• Allow users to block or report players
• Maintain player statistics
• Maintain game-related information required for the operation of the App
• Detect and handle game completion
• Provide notifications
• Analyze app performance and usage
• Diagnose crashes and technical problems
• Maintain and improve the App
• Provide essential app functionality
• Respond to technical problems and support requests

We do not use your information for purposes unrelated to the operation of the App without appropriate notice.

3. Firebase Services

The App uses services provided by Google Firebase, which may process information on our behalf.

These services include:

• Firebase Authentication
• Cloud Firestore
• Firebase Cloud Functions
• Firebase Analytics
• Firebase Crashlytics
• Firebase Cloud Messaging
• Firebase Remote Config

These services may process information necessary to provide authentication, online gameplay, cloud data storage, matchmaking, player statistics, analytics, crash reporting, notifications, remote configuration, and other app functionality.

Firebase may process information according to Google's applicable privacy practices and policies.

For more information about Google's privacy practices, please refer to Google's Privacy Policy.

4. Advertising

The App currently uses Google AdMob to display advertisements.

Advertising services may collect or process information such as:

• Advertising identifiers
• Device information
• IP address
• Approximate location
• App and device information
• Information about interactions with advertisements

Advertising providers may use this information to provide, measure, and improve advertising services, subject to their own privacy policies and applicable laws.

The advertising services used by the App may change in the future. If advertising providers are changed or additional providers are added, this Privacy Policy may be updated accordingly.

5. Analytics and Crash Reporting

The App may use Firebase Analytics to understand how the App is used and Firebase Crashlytics to identify and diagnose technical problems.

This may include information such as:

• App usage information
• Device information
• Operating system information
• App version
• Crash information
• Diagnostic information
• Technical information
• Firebase user or app identifiers associated with crash reports

Crashlytics may use an identifier associated with your Firebase account to help us identify and diagnose problems affecting a particular app user or session.

This information is used to improve the stability, performance, and reliability of the App.

6. Notifications

If notifications are enabled, the App may use Firebase Cloud Messaging (FCM) to send notifications related to the App.

Notifications may include information related to:

• Online game activity
• Game-related events
• Service-related information
• Other important App functionality

You can control notification permissions through your device settings.

7. Remote Configuration

The App uses Firebase Remote Config to remotely configure certain app content or behavior.

Remote Config may be used to provide or update information such as:

• App messages
• Remote content
• Feature-related configuration
• Links or other remotely configured content

Remote Config is used to help maintain and update the App without requiring every configuration change to be included in a new application version.

8. Offline Games

The App provides offline chess functionality.

Offline games can be played without creating an online account or connecting to online multiplayer services.

Information required specifically for online gameplay, such as online matchmaking and online player profiles, is not required to play an offline game.

9. App Settings

The App may store certain preferences on your device, such as:

• Sound effects preference
• Vibration preference
• Dark theme preference
• Notification preference
• Board theme preference

These settings are used to provide your selected App experience.

10. Data Security

We take reasonable measures to protect information used by the App.

Online account and game information is stored using services such as Firebase Authentication, Cloud Firestore, and Firebase Cloud Functions.

However, no method of electronic storage or transmission over the internet can be guaranteed to be completely secure.

11. Data Retention

Account and online-game information may be retained for as long as necessary to:

• Provide online gameplay
• Maintain player profiles
• Maintain ELO ratings
• Maintain player statistics
• Operate matchmaking
• Support game functionality
• Handle moderation and player reports
• Provide and improve the App
• Comply with applicable legal requirements

Some game-related information may remain stored after a game has ended because it may be required for player statistics, ELO ratings, game-related functionality, moderation, or other legitimate operational purposes.

You may request deletion of your account or associated personal information by contacting us.

12. Children's Privacy

The App is not specifically directed toward children.

We do not knowingly collect personal information from children in violation of applicable laws.

If you believe that a child has provided personal information to us in violation of applicable requirements, please contact us so that we can take appropriate action.

13. Third-Party Services

The App may use third-party services for:

• Authentication
• Cloud storage
• Online multiplayer functionality
• Analytics
• Crash reporting
• Notifications
• Advertising
• Remote configuration
• Other essential App functionality

These third-party service providers may process information according to their own privacy policies.

The primary third-party services currently used by the App include Google Firebase services and Google AdMob.

14. Your Choices

Depending on the functionality you use, you may be able to:

• Choose whether to create an online account
• Play offline without an online account
• Choose whether to use online multiplayer features
• Control notification permissions
• Control certain App preferences
• Block other players
• Report other players
• Request deletion of your account and associated information
• Contact us regarding your personal information

You may also be able to control certain advertising and privacy-related settings through your Android device or Google account settings.

15. Account and Data Deletion Requests

If you would like to request deletion of your account or associated personal information, you may contact us using the contact information provided below.

We will review deletion requests and take appropriate action subject to applicable legal, security, fraud-prevention, and legitimate operational requirements.

Some information may need to be retained where required by law or where reasonably necessary for legitimate purposes such as security, fraud prevention, dispute resolution, or maintaining necessary records.

16. Changes to This Privacy Policy

We may update this Privacy Policy from time to time.

When changes are made, the updated Last Updated date will be shown at the top of this Privacy Policy.

You are encouraged to review this Privacy Policy periodically to stay informed about how information is handled.

17. Account and Data Deletion

To request deletion of your Chess - Online & Offline account and associated personal information, please contact us at krishnaworkemail@gmail.com with your registered email address or username. We will process the deletion request in accordance with our Privacy Policy.

18. Contact Us

If you have questions, concerns, privacy requests, or requests regarding your personal information, please contact us.

Developer: Krishna Pariyar
App: Chess - Online & Offline

Email: krishnaworkemail@gmail.com