Privacy Policy

1. Information We Collect

Account Information

If you create an account, we collect the email address, password (stored securely and hashed by our authentication provider, Supabase), username, and optionally a country code you provide. This is used to identify you, sync your progress across devices, and display you on leaderboards.

Game Data

We store gameplay statistics, puzzle progress, difficulty level, leaderboard scores, and in-app currency/shields associated with your account so your progress and rankings can be saved and displayed.

Purchase Information

In-app purchases (such as premium unlocks) are processed by the Apple App Store or Google Play. We never see or store your payment card details. We only receive confirmation of the purchase (e.g. product purchased, transaction status) to unlock the corresponding content on your account.

Biometric Authentication

If you enable Face ID, Touch ID, or fingerprint unlock, this authentication is handled entirely by your device's operating system. We never receive, transmit, or store your biometric data — the App only receives a yes/no confirmation from the OS.

Advertising Data

The free version of the App displays ads served by Google AdMob. AdMob may collect device and advertising identifiers, approximate location, and ad interaction data to serve and measure ads, subject to Google's own privacy policy. You can opt out of personalized advertising through your device's settings.

Diagnostic & Crash Data

We use Sentry to collect crash reports and error logs, which may include device model, operating system version, app version, and stack traces, to help us identify and fix bugs.

Automatically Collected Information

Our servers may automatically log technical information such as IP address, device type, and app version when the App communicates with our backend.

2. How We Use Information

• To create and manage your account and game profile
• To save your progress, statistics, and leaderboard rankings
• To unlock premium features and purchased content
• To display advertising and measure ad performance (free version)
• To diagnose crashes and improve app stability and performance
• To respond to support requests
• To detect, prevent, and address fraud, cheating, or abuse

3. Third-Party Services

We rely on the following third-party services to operate the App:

These providers process data under their own privacy policies. We recommend reviewing them for additional detail.

4. Data Sharing & Disclosure

We do not sell your personal information. We only share information with the third-party service providers listed above, to the extent necessary for them to perform their function, or when required by law, to protect our legal rights, or to investigate fraud or security issues.

5. Data Retention

We retain account and game data for as long as your account is active. If you request deletion of your account, we will delete or anonymize your personal data within a reasonable timeframe, except where retention is required for legal, security, or fraud-prevention purposes.

6. Your Rights & Choices

Depending on your location, you may have the right to:

• Access the personal data we hold about you
• Correct inaccurate data
• Request deletion of your account and associated data
• Request a copy of your data in a portable format
• Object to or restrict certain processing
• Withdraw consent where processing is based on consent

To exercise any of these rights, contact us at the email address below. We will respond within a reasonable timeframe.

7. Children's Privacy

SudoKing Arena is not directed at children under the age of 13 (or the equivalent minimum age in your jurisdiction), and we do not knowingly collect personal information from children. If you believe a child has provided us with personal data, please contact us so we can delete it.

8. International Data Transfers

Your information may be processed and stored on servers located outside your country of residence, including in countries where our service providers operate. We take reasonable steps to ensure your data is treated securely wherever it is processed.

9. Security

We use reasonable technical and organizational measures, including encrypted connections and secure authentication, to protect your information. No method of transmission or storage is 100% secure, and we cannot guarantee absolute security.

10. Changes to This Policy

We may update this Privacy Policy from time to time. Changes will be posted on this page with an updated effective date. Continued use of the App after changes take effect constitutes acceptance of the revised policy.

11. Contact Us

If you have any questions about this Privacy Policy or wish to exercise your data rights, contact us at:

sudokingarena@proton.me