Sudoku 3D is published by Trinitytech Bilgisayar Limited Şirketi, Alanya, Türkiye ("we"). Contact: info@trinitytech.dev. Last updated: 31 October 2026.
Your games in progress, statistics and settings are saved only on your device. You can delete them any time with "Reset statistics" or by uninstalling the app.
Signing in is optional and only needed for the online leaderboard. When you sign in with Google, Apple or Game Center, Firebase Authentication (Google) receives an account identifier and, depending on the provider, your name, email address and profile photo.
When you finish a puzzle while signed in, we store your nickname, best time, number of mistakes and hints, and the date in Google Cloud Firestore (EU multi-region). Your nickname and times are visible to other players.
The free version shows ads served by Google AdMob (an app-open ad and optional reward videos). AdMob may collect device identifiers (such as the advertising ID), IP address and app interaction data to show and measure ads, and — where you consent — to personalise them. In the EEA/UK you are asked for consent first and can change it anytime in Settings → Privacy choices. Google's policy: https://policies.google.com/technologies/ads
Removing ads (monthly subscription or lifetime) is processed entirely by Google Play or the Apple App Store. We never see your payment details; we only receive confirmation that the purchase is active.
We do not use analytics or tracking SDKs of our own, and we do not sell your personal data.
In Settings, "Delete account" removes your account and your leaderboard entries from our servers immediately. Local data is removed with "Reset statistics" or by uninstalling. You can also email us to request deletion.
The app is suitable for all ages but is not directed at children under 13, and we do not knowingly collect their personal data.
Depending on where you live (for example under GDPR or KVKK), you can request access to, correction or deletion of your data by contacting info@trinitytech.dev.
If this policy changes, we will update the date above and show the new version in the app.