Privacy Policy
Last updated: November 11, 2026
This Privacy Policy describes the policies and procedures of Sudoku Arena: Blast & Duels (developed and published by Yogurt Studios) regarding the collection, use, and disclosure of your information when you download, install, and play our game, and explains your privacy rights and protections under applicable privacy laws.
🧩 Clean, Brain-Boosting Puzzle Gameplay & Fair Duels: Sudoku Arena is a modern Sudoku puzzle game offering classic logic challenges, monthly adventure campaigns, and real-time 1v1 multiplayer duels. We respect your privacy: we do not collect real personal identities, physical locations, phone numbers, contact books, or private photos. All core puzzle gameplay operates seamlessly on your device with optional cloud-synced progress.
📢 Advertising & Monetization Notice: Sudoku Arena uses Google AdMob to display non-intrusive banner ads, interstitial break ads between completed puzzles, and optional rewarded video ads (e.g. to receive puzzle hints or bonus undo tokens). Players can permanently disable third-party ads at any time via an in-app purchase processed securely through Google Play In-App Billing.
Interpretation and Definitions
Definitions
- Application — refers to Sudoku Arena: Blast & Duels (Package Name:
com.yogurtstudios.sudokuarena), the mobile game application provided by Yogurt Studios.
- Company — refers to Yogurt Studios ("We", "Us", "Our").
- Country — Turkey.
- Device — any internet-capable mobile device that can run the Application (Android smartphone, tablet, or foldable).
- Personal Data — any information that relates to an identified or identifiable individual. Sudoku Arena collects minimal, non-identifying gameplay and diagnostic data.
- Usage Data — data collected automatically either through playing the Application or through third-party services (such as Google Play Games, Google AdMob, or Firebase).
- You — the individual accessing, downloading, or playing the Application.
Information We Collect and How We Collect It
1. Information You Provide Directly
When you play Sudoku Arena, you may customize your gameplay profile:
- Player Nickname: An optional nickname of your choice (defaulting to a randomized guest identifier such as
Player_12345678). You can change this at any time in Profile settings. Please do not use your real name or personal contact details as a nickname.
- Avatar & Customization: Your selected profile avatar and unlocked board themes/skins.
- Settings Preferences: Audio toggle (SFX, Music), haptic vibration feedback, error highlighting preferences, and language preferences.
2. Information Collected Automatically
- Gameplay Progress & High Scores: Solved puzzle statistics, completion times, difficulty levels, trophies, streak counts, duel win/loss records, Club ratings, and milestone achievements. Stored locally via Room database and synchronized with Google Firebase Firestore for online features.
- Device & Diagnostic Information: Device model, operating system version, screen resolution, app version, language/locale, and anonymous technical diagnostics (e.g. crash reports) to maintain optimal performance.
3. Third-Party Services & SDKs
Sudoku Arena integrates with industry-standard, trusted third-party services:
- Google Firebase (Authentication, Cloud Firestore, Cloud Functions & Analytics): Used for secure player authentication (guest or linked), real-time multiplayer duel matchmaking, Club leaderboards, and cloud save synchronization. (Firebase Privacy Policy)
- Google AdMob: Used to display banner advertisements, interstitial ads, and optional rewarded video ads. Google AdMob may use device advertising identifiers (GAID) in accordance with Google's policies. (Google AdMob Privacy Policy)
- Google Play In-App Billing: Used to process purchases (such as "Remove Ads", coin packs, or Season Passes). All payments and sensitive credit card details are handled strictly and securely by Google Play. Yogurt Studios never receives, sees, or stores your financial or billing information. (Google Play Privacy Policy)
Device Permissions We Request
To provide a smooth, competitive puzzle experience, Sudoku Arena requests only minimal, non-intrusive permissions on your Android device:
- Internet Access (
android.permission.INTERNET): Required for online multiplayer duels, cloud synchronization, daily challenges, and serving ads.
- Network State (
android.permission.ACCESS_NETWORK_STATE): Required to check if an active internet connection is available before attempting cloud sync or duel matchmaking.
- Vibration (
android.permission.VIBRATE): Used exclusively to trigger optional tactile haptic feedback during number placement, error alerts, and victory animations. Can be disabled at any time in Settings.
- Post Notifications (
android.permission.POST_NOTIFICATIONS): Optional on Android 13+ to notify you of incoming duel invitations or daily challenge reminders. Can be toggled on/off at any time in system settings.
Permissions We DO NOT Request: Sudoku Arena does NOT request access to your Camera, Microphone, Photo Gallery, Storage, Contacts, Phone Calls, GPS Location, or any sensitive hardware.
How We Use Your Information
- To deliver responsive classic Sudoku and real-time 1v1 PvP duels.
- To save your progress, personal records, and unlocked content across sessions.
- To display your anonymous nickname, avatar, and trophy ranking on global leaderboards and Club rosters.
- To manage daily challenges, seasonal pass progression, and rewards.
- To provide personalized game settings and accessibility preferences.
- To serve advertisements and rewarded video experiences via Google AdMob.
- To facilitate secure in-app purchases via Google Play Billing.
Data Retention & User Data Deletion
We respect your right to control and erase your game data at any time:
- In-App One-Click Account Deletion: You can permanently delete your player profile, cloud saves, and associated duel records directly inside the game by opening Settings → Account → Delete Account. This permanently wipes your data from our Firebase servers.
- Online Deletion Request Page: You can review our dedicated data deletion instructions at Sudoku Arena Data Deletion Page.
- Email Deletion Request: You can also contact us at askyogurtstudios@gmail.com with your Player ID (found in Settings → Account). We process deletion requests within 30 days.
Children's Privacy (COPPA & Family Policy)
Sudoku Arena: Blast & Duels is an all-ages logic puzzle game. We do not knowingly collect or solicit personal identifiable information from children under 13 (or under 16 in the European Union). If you believe that a minor has provided personal data without parental consent, please contact us immediately at askyogurtstudios@gmail.com and we will promptly remove such information.
Security of Your Data
We implement industry-standard technical and organizational security measures to protect game data. Cloud communication with Firebase and Google services is encrypted using Transport Layer Security (TLS/HTTPS). Database access is strictly governed by server-side Firebase security rules.
Changes to This Privacy Policy
We may update this Privacy Policy from time to time to reflect game updates, new features, or statutory requirements. Any changes will be published on this page with an updated "Last updated" date. We encourage players to periodically review this page.
Contact Us
If you have any questions, feedback, or privacy-related requests regarding Sudoku Arena or this Privacy Policy, please reach out to us: