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KORE is free to download. Finding restrooms, full details and directions for ordinary (red-pin) restrooms, adding places, reviews and games all work without paying anything. The free version shows ads on Home, Games and Rankings.

KORE Premium, an optional monthly subscription, unlocks:

• Clean toilet details — photos, ratings, directions, parking, reviews and every other detail behind a blue pin
• Filter by what you need — accessible stalls, changing tables, open 24h, open now, emergency bells, separate men's and women's rooms, nursing rooms
• No ads, unlimited game tokens and a profile that glows gold

Seeing where the blue pins are with "Clean only", and the nearest clean Top 3 on Home, stay free. The price is shown on the subscription screen, as set by your store.

Subscribe from All → KORE Premium. The subscription renews monthly and payment is handled by the App Store / Google Play. A first subscription the store deems eligible starts with a 7-day free trial — cancel before it ends and you pay nothing.

To cancel, tap Manage subscription or Cancel subscription on the subscription screen, which opens your store's subscription settings. Premium stays on until the period you've paid for ends. On a new phone or after reinstalling, tap Restore purchases.

If a payment is waiting for approval, Premium switches on by itself once it goes through. The earlier three-month free period for travellers is closed to new sign-ups; if you already have it, it runs until the date shown in the app (no automatic payment, ads stay on).

No. Browsing the map, adding a restroom, suggesting an edit, reviews and ratings, the game boards and even private "only me" markers all work without one.

Signing up asks for a nickname and a country, and your records follow you to a new phone. Your nickname, flag and (optional) profile photo appear on the boards and on your reviews.

It's optional. With it, the map opens where you are and every result shows how far away it is, including the "three nearest restrooms" card on Home. Without it you can still pan the map anywhere in Korea.

Location is used only while you are using the app — never in the background.

For a public-toilet pin, tap it and use Suggest Editing Marker at the bottom of the Info tab. Cafés, libraries and other pins don't have that button — tell us through Send Feedback or by email instead. If the place isn't on the map at all, use the ＋ button at the bottom right of the map to add it.

Submissions are reviewed before they go live. What you've sent is listed under All → My markers · Feedback · History → My markers, and you'll get a notification when one is approved. One that isn't used drops off the list, and sometimes it is turned into a private marker only you can see. Approved additions also count toward the contributor board.

• Red — an ordinary restroom
• Blue — a clean restroom (the deeper the blue, the cleaner)
• Yellow — nearest to you
• Green — a search result
• Teal — your own "only me" marker
• Violet — an address you searched for

The Marker guide at the top left of the map says the same thing in the app. Details behind a blue pin open with KORE Premium.

Yes — the "Clean only" pill under the marker guide leaves nothing but the blue pins. Tap it again to bring the rest back.

The Walking directions button on a pin's detail sheet draws the way there inside the app. If you need to drive, the TMAP · KakaoMap · Naver Map buttons under Driving directions in another app hand the destination to the app you already use. Directions to a blue (clean) pin come with KORE Premium.

In the All tab → Change language. KORE supports 한국어, English, 日本語, 中文(简体) and 中文(繁體) — and it isn't only the buttons: restroom names, addresses, facility details and reviews change with it.

A review on a published restroom is visible to other users as soon as you post it (reviews behind a blue pin are shown to KORE Premium members). It is stored in the language you wrote it in and translated into the other four. You can edit or delete your own at any time. Each review keeps the nickname you had when you wrote it, or "Anonymous" if you had none.

Scores are saved online. On a flaky connection a round may not be recorded, and the app says so rather than pretending otherwise. The weekly board turns over every Monday (Korean time).

The Games tab shows four of the seven games, and at midnight Korean time some of them swap out at random. Records and rankings for the games that are off the shelf are kept as they are.

Each round costs one token. You hold up to 10, one comes back every 30 minutes, and if notifications are on we tell you when you're full. Out of tokens? Watch an ad for 1 token and play on — and once per round you can Watch an ad and continue when a game ends. KORE Premium members play without a token limit.