Privacy & Advertising

Your practice data

Your display name, preferences and unfinished practice are saved in this browser. Completed rounds and original puzzle snapshots are archived using IndexedDB, with a small recent-history backup in local storage. Guest data stays on this device. When account sign-in is available and you sign in, completed rounds, answers and puzzle snapshots are stored in Appwrite Cloud under your account so history and streaks can be restored on other devices. Appwrite handles email/password sign-in, your account name and email, session management and password reset emails. Use a password created for this app; the app does not save your password in its practice storage. Unfinished rounds, display-name preferences and daily-goal settings remain on the device, separated by account. Guest history is copied only when you choose Import device history. Signing out returns to guest data; account data remains cached in this browser. On a shared device, clear site data after signing out. Clearing history while signed in deletes cloud history too; offline devices may still hold copies. The app does not send your answers or display name to Google advertising tags. Use Progress → Export history to download a backup, or Progress → Clear Storage to delete history and unfinished practice. To remove preferences as well, clear site data in your browser.

Google Analytics

This site uses Google Analytics to measure page visits and site usage. Google may process browser and device information and use analytics cookies. We do not include your display name, puzzle answers or saved history in analytics events.

Optional Google services

When enabled by the site operator, Google AdSense may display advertisements outside timed exams. Google Ads may measure a completed practice round as a conversion. Advertising providers may process device identifiers, cookies and network information such as IP addresses according to their own policies.

These integrations wait for a decision from the configured consent management platform. Where it reports that consent is required, declining storage consent prevents ad requests; conversion measurement additionally requires measurement consent. Changing your decision updates future requests. Existing cookies can be removed through your browser settings.

Manage your choices

Use the advertising consent message provided by the configured consent platform. If Google’s privacy message is active, you can reopen it below. Without configured Google services, practice works without advertising tags.

Read how Google uses information from sites that use its services. The hosting provider may process access logs to deliver and protect the website.