Privacy policy

Your privacy in HexDoku

HexDoku collects only the information needed to save your progress, improve the game, process purchases, operate leaderboards, and fix technical problems.

Last updated October 13, 2026

Overview

This policy explains how HexDoku handles information when you use the app or website. HexDoku does not require a separate account. We do not sell your personal information or use your game activity for personalized advertising.

Information stored on your device

HexDoku stores game information locally so you can continue where you stopped. This may include your current puzzle, placed crystals and X marks, score, lives, Stardust balance, streaks, milestones, tutorial progress, completed levels, campaign progress, puzzle results, and purchase entitlements.

This information normally remains on your device. Deleting HexDoku generally removes locally stored game information, although some data may remain in device backups or be restored by Apple. Game Center records and App Store purchase history are managed separately by Apple.

Analytics and game activity

HexDoku uses Google Firebase Analytics to understand how the game is used and where it can be improved. Firebase may collect a pseudonymous app-installation identifier along with app opens, sessions, engagement time, app version, device model, operating system, language, and general geographic region.

HexDoku also records gameplay events such as tutorial progress, campaign and level number, puzzle size and difficulty, level results, completion time, score, mistakes, hints and reveals used, Stardust activity, milestone claims, store and paywall interactions, and purchase results. These events are not intended to contain your name, email address, contacts, or the contents of support messages.

Crash reports and diagnostics

HexDoku uses Firebase Crashlytics to identify crashes and technical problems. Diagnostic reports may include stack traces, error details, app and operating-system versions, device model, installation identifiers, and relevant app or gameplay state from around the time of a problem.

BigQuery and the private dashboard

Firebase Analytics and Crashlytics information may be exported to Google BigQuery and summarized in a private HexDoku administration dashboard. This lets us review game progression, level difficulty, retention, purchases, and technical reliability. Access is restricted and used only to operate, understand, and improve HexDoku.

Game Center

HexDoku supports Apple Game Center for leaderboards and achievements. If you use these features, HexDoku may access information Apple makes available through Game Center, including your player identifier, display name, profile image, leaderboard score, rank, and achievement progress. HexDoku may submit your lifetime score and achievement progress to Game Center. Apple manages your Game Center account.

Purchases and Stardust

In-app purchases are processed by Apple through StoreKit. HexDoku does not receive or store your payment-card or billing information. Apple provides the app with information needed to confirm a purchase, such as product, transaction status, transaction identifier, and entitlement status.

HexDoku may store transaction identifiers on your device to prevent a Stardust purchase from being credited more than once. Purchase attempts, results, product identifiers, and verified transactions may also be recorded through Firebase Analytics.

Advertising

HexDoku does not currently display third-party advertising. Analytics advertising personalization is disabled, and HexDoku does not use your gameplay activity to build a profile for personalized ads.

Website information

The public HexDoku website does not intentionally use behavioral advertising trackers. Its hosting provider may process basic technical information such as IP address, browser and device type, and request logs to deliver the site securely, prevent abuse, and maintain reliability.

Messages you send

If you send feedback, a privacy question, or a bug report by email, we receive the information you choose to include along with your email address. We use it to respond, investigate the issue, and improve HexDoku. Please avoid including sensitive personal information.

Service providers and disclosure

HexDoku relies on Google for Firebase Analytics, Crashlytics, and BigQuery, and on Apple for Game Center and App Store purchases. These companies process information according to their own terms and privacy policies. Information may also be disclosed when reasonably necessary to comply with law, prevent fraud or abuse, or protect users and HexDoku.

Data retention and your choices

Local game information remains on your device until it is deleted or removed with the app, subject to device backups. Analytics, diagnostic, and BigQuery information is retained according to our configured retention settings and the applicable provider's policies.

You can choose not to use Game Center. You can manage Game Center, purchase history, and related Apple privacy settings through your Apple Account and device settings. Depending on where you live, you may have rights concerning your personal information and may contact us below. Because analytics uses pseudonymous installation identifiers rather than a HexDoku account, we may not always be able to connect an email request to a particular analytics record.

Data security

We use reasonable safeguards and limit access to private analytics and diagnostic information. No storage or transmission system can be guaranteed to be completely secure.

Changes to this policy

We may update this policy when HexDoku adds or changes features, services, or data practices. The revision date above will show when it was last updated.

Provider information

Learn more in the Google Privacy Policy and the Apple Privacy Policy.