Privacy

Every page here works without an account, and nothing is behind one. Your study data stays in your own browser unless you sign in, and signing in exists for exactly one reason — to carry that same data to your other devices.

What is stored in your browser

Everything the study side of this site remembers is kept in your own browser's local storage: the words you have marked known and the review dates you have given them, any study plans you have joined and how far each has got, a count of how many marks you made on each day, the pages you have opened, and your device preferences — theme, romanization, which rows you left expanded, how many new cards a deck session deals.

While you are signed out, none of it leaves your device. Clearing your browser data clears it, and there is nothing to delete anywhere else because there is nowhere else. Your progress page shows all of it back to you, and its Export button downloads the lot as a JSON file.

Signing in, and cross-device sync

Signing in is optional and nothing on this site is hidden behind it. If you use Sign in with Google, Google shows you an account chooser and, once you agree, passes this site your name, your email address and a Google account identifier. That session is kept in your browser by Google's Firebase Authentication library.

Signing in does one thing: it copies the study data listed above — statuses, review dates, plans, day-by-day effort and the pages you have visited — into a single record held against your account in Google Firestore, so your other devices can read it back. It is stored so that only you, signed in, can read or write it. Your device preferences are not part of it: they describe a screen, not a reader. Nothing is shared, sold, or used to build an advertising profile, and no page changes because of it.

You can sign out from the account menu in the header, which stops the syncing and leaves this device's copy alone, and you can revoke this site's access entirely at myaccount.google.com/permissions. Reset all progress on the progress page clears the stored record on every device you are signed in on. To have the account itself deleted, email the address below.

Analytics

This site uses Google Analytics, through Firebase, to count page views and a few anonymous interactions: a word someone searched for, a study plan being started or a day of one completed, and a flashcard session being cleared. Those records carry a TOPIK level and a page address, never the contents of your plan. No profile is built for advertising and nothing is sold or shared with advertisers. If you are signed in, your Google account identifier is attached to those statistics so repeat visits count as one person rather than several.

Any content blocker will stop analytics from loading, and the site is built to work identically when it does.

Cookies

This site sets no cookies to run. Google Analytics sets its own first-party cookies to tell one visit from the next; clearing site data removes them.

External requests

Word recordings are played from the 국립국어원's own media host, so pressing a speaker button contacts dicmedia.korean.go.kr, which will see your IP address as any web request does. The Firebase library used for analytics and sign-in is loaded from gstatic.com and talks to Google's servers, which likewise see your IP address. Beyond those, nothing on the site loads from a third party — no advertising and no embedded widgets.

Contact

Questions, corrections, or a request to remove something: hello@koreanpath.com.