Your privacy, in plain words.

Your privacy

Puzzle Spark is developed as DVKapp. Contact: game@dvk.vn. Updated 16 October 2026. No account, name, phone number or precise location is required.

Progress on your device

Completed levels, stars, moves, daily challenges and settings are stored on your device. There is no online leaderboard or server progress backup. Any operating-system backup follows your device settings. Uninstalling or resetting data may erase progress.

Return reminders

Reminders only run after you enable Play reminders and grant notification permission. The last play time is stored on the device to schedule at most two local notifications, about 12 and 24 hours later. Playing again replaces the schedule; disabling reminders cancels it. The operating system or power saving may delay delivery. Last play times are not sent to a server for reminders.

Firebase and optional analytics

Firebase connects the game to the Puzzle Spark project. Google Analytics is off by default and only enabled if you choose Share usage analytics. When enabled, Google may receive an installation identifier, device details and level start/completion events, move and hint counts. No email, name or personal content is sent by the game; Analytics is not used for ad personalization. Turning it off stops new collection and resets local Analytics data, but does not automatically delete data already sent. Google policy: policies.google.com/privacy.

Ads in the test build

The development build uses Google Mobile Ads SDK and official Google test ad IDs. The SDK may process device information, IP address, diagnostics and ad interactions under Google policies. Requests are non-personalized; this does not mean no data is processed. Test ads can be disabled in Settings. The release build currently does not initialize or load ads.

No tracking permission requested

This version does not request App Tracking Transparency permission or implement tracking across apps. Before commercial ads are enabled, privacy notices and consent choices must be updated for the actual SDK configuration and release regions.

Control your data

Use Settings → Reset data to remove all local progress and preferences. There is no account to delete. If you email support, your email address and message are used to respond to your request.

Third-party services and updates

How Google uses data: policies.google.com/privacy and policies.google.com/technologies/ads. If data handling changes, the in-app policy will be updated before the new feature is applied.

About this website

This website has no account, contact form, advertising SDK, analytics script or tracking cookie. Email opens your own mail app. The site is hosted on GitHub Pages and its DNS is managed through Cloudflare; hosting and network providers may process request data such as IP addresses and technical logs under their own privacy policies.

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