Privacy Policy — Sudoku Daily Brain Game
Effective date / Last updated: February 13, 2026This Privacy Policy explains how Sudoku Daily Brain Game (“we”, “our”, “the app”) collects, uses, and shares information when you use our mobile application.By using the app, you agree to the practices described in this Policy.
1) Information We Collect
We collect information in the following ways:
A. Information you provide
Account information (optional): If you sign in with Google, we may receive basic profile information such as your name, email address, and profile picture (as permitted by you and Google).
Support messages: If you contact us, we receive the content you send (and may receive your email address).
B. Information collected automatically
App and device data: device model, operating system version, app version, language, time zone, and identifiers necessary for app functionality.
Usage and diagnostics: in-app events, performance data, and crash logs to improve stability and user experience.
Network information: basic connectivity status (e.g., online/offline) to support syncing and loading content.
C. Game data
Gameplay and progress data: puzzles played, difficulty, time, score, streaks, achievements, leaderboard results, and in-game inventory (coins, hints, undos, Premium status if applicable).
D. Advertising and notifications (if enabled)
Ads data: We may show ads. Advertising partners may collect identifiers and limited information for ad delivery, frequency capping, and measurement (see “Third‑Party Services”).
Push notification tokens: If you enable notifications, we collect a device push token (e.g., FCM token) to send reminders and app notifications.
2) How We Use Information
We use the collected information to:
Provide core features (gameplay, saving progress, leaderboards, achievements).
Sync your progress across devices when you sign in.
Send notifications you opt into (e.g., daily reminders).
Display and measure ads (if the app shows ads).
Maintain security, prevent fraud/abuse, and enforce our policies.
Improve performance, fix bugs, and develop new features.
3) How We Share Information
We do not sell your personal information.We may share information:
With service providers that help us operate the app (e.g., hosting, databases, crash reporting, push notifications, advertising).
For legal reasons if required by law, regulation, or lawful request.
In case of business changes (e.g., merger, acquisition), information may be transferred as part of that process, subject to applicable law.
4) Third‑Party Services
The app may use third‑party services that collect information according to their own privacy policies, including:
Google Sign‑In (for optional login)
Google AdMob (ads)
Firebase (e.g., Cloud Messaging for notifications, Remote Config, diagnostics)
Supabase (backend storage and syncing)
We encourage you to review the privacy policies of these providers.
5) Data Retention
We retain information only as long as necessary to:
Provide the app’s features,
Comply with legal obligations,
Resolve disputes, and
Enforce agreements.
You may request deletion as described below.
6) Security
We use reasonable technical and organizational measures to protect your information. However, no method of transmission or storage is 100% secure, and we cannot guarantee absolute security.
7) Children’s Privacy
The app is not directed to children under 13 (or the minimum age required in your jurisdiction). We do not knowingly collect personal information from children. If you believe a child has provided personal information, contact us and we will take appropriate steps to delete it.
8) Your Choices & Rights
Depending on where you live, you may have rights to:
Access, correct, or delete certain information,
Object to or restrict certain processing,
Request a copy of your information.
You can also:
Turn notifications on/off in your device settings.
Limit ad personalization (where available) through your device or Google settings.
To request access or deletion, contact us at the email below.
9) International Transfers
Your information may be processed in countries other than your own, where data protection laws may differ. We take steps designed to ensure appropriate safeguards where required.
10) Changes to This Policy
We may update this Privacy Policy from time to time. We will post the updated version and change the “Last updated” date above. Continued use of the app after changes means you accept the updated Policy.
11) Contact Us
If you have questions or requests about privacy, contact:Email: Sdbg-support@gmail.com