Last updated: Oct 8, 2025
At Sudoku Classic - Math Master, developed and published by Nappkin Lab (“we”, “our”), we are committed to protecting your privacy. This Privacy and Cookies Policy explains how we collect, use, and safeguard information when you use our mobile application.
We do not require user registration or collect personally identifiable information such as name, email, or IP address. You can use the app completely anonymously.
However, we automatically collect non-personal and aggregated usage data to improve the app experience and ensure its proper functionality. This may include:
We use trusted third-party services to help us operate, analyze, and improve the app. These services may collect and process anonymous or aggregated information automatically. These include but are not limited to:
Each provider handles data according to their own privacy policies. We do not share or transmit personal data to these services because we do not collect it.
DMA/GDPR consent. Where required by the Digital Markets Act (DMA), GDPR, or similar laws, we will request your consent before enabling analytics or advertising features that rely on tracking technologies (e.g., device identifiers). You can withdraw your consent at any time via your device settings and, where available, through an in-app privacy screen. Refusing consent will not affect access to core, non-tracking features of the app.
⚖️ Note on international transfers: Some providers may process data outside the European Economic Area (EEA). In such cases, we ensure that appropriate safeguards (such as Standard Contractual Clauses) are in place.