Is KORLENS free to use?

Yes. KORLENS is 100% free for travelers. Browse 17 region guides, restaurant picks, accommodations, and itineraries with no signup required. Affiliate links to GetYourGuide, Trip.com, Klook, Viator, Olive Young, and Stay22 cover our costs at no extra charge to you.

How is KORLENS different from Visit Korea or Lonely Planet?

KORLENS is built by a solo founder living in Korea — picks are based on actual local visits, not aggregated reviews. Content is generated using AI on top of public Korea Tourism Organization data, then verified for hours and prices. Tone is direct and honest: we say when a place is overrated.

Can I book hotels and tours directly through KORLENS?

Yes. KORLENS links to 6 affiliate partners: GetYourGuide (tours), Trip.com (hotels + flights), Klook (activities), Viator (tours), Olive Young (K-beauty), and Stay22 (hotel meta-search). All links open in new tabs and clearly disclose affiliate relationships.

What languages does KORLENS support?

KORLENS is available in 10 locales: English, Korean, Japanese, Chinese (Simplified), Spanish, Portuguese, Indonesian, Vietnamese, Hindi, and Arabic. Each locale has dedicated subpath (e.g., /ja for Japanese) with locally-relevant tone and currency hints.

Is KORLENS suitable for first-time visitors to Korea?

Yes. KORLENS includes a Trip Planner for first-timers covering Seoul + 1 region (Jeju, Busan, Gyeongju, or Incheon). Default 5-day itinerary includes Hongdae, Gyeongbokgung, Myeongdong, and DMZ tour. Budget tier from $80/day shown.

Korea SIM card vs eSIM (2026): which should you actually get?

Both get you online in Korea - the right pick comes down to your phone, trip length, and how much arrival-day hassle you'll tolerate. Here's the honest side-by-side, including where each one quietly costs you time or money.

See Korea eSIM options →Full eSIM guide

SIM vs eSIM, point by point

eSIM — buy and install before you fly
The catch: Your phone must be eSIM-compatible and carrier-unlocked, and installation needs internet, so it must be done before arrival.
Physical SIM — works on almost any phone
The catch: You swap out your home SIM (and can miss home calls/texts), often need a counter visit on arrival, and the tiny card is easy to lose.
Setup effort
The catch: eSIM is a few taps with a QR code; a mis-toggled 'data roaming' setting is the most common reason an eSIM 'doesn't work' on arrival.
Cost
The catch: Prices move with data size and trip length, not the format - airport-counter SIMs can carry a markup vs buying online ahead, so compare before you land.
Keeping your number
The catch: On a single-SIM phone, a physical Korea SIM means home calls/texts wait until you swap back; an eSIM keeps both lines live.
Calls vs data
The catch: Most eSIMs are data-first (call via apps); if you need a local Korean number for bookings/SMS, check before buying - many data eSIMs don't include one.
Group travel
The catch: Each person needs their own SIM/eSIM, which adds up - for a group, pocket WiFi sharing one device is worth pricing against both.
Top-ups
The catch: eSIMs top up in-app in seconds; don't over-buy data up front since refunds on unused allowance are rare either way.
Coverage
The catch: Both ride Korea's major networks, so coverage is network-dependent not format-dependent - check which network a plan uses rather than assuming one is faster.

Most travelers (recent unlocked phone): an eSIM skips the airport counter and keeps your home number live. Install before you fly, land connected.

Browse Korea eSIM on Klook →Or see Airalo Korea eSIM →

Affiliate links. If you buy through them, KORLENS may earn a small commission at no extra cost to you.

Frequently asked: Korea SIM vs eSIM

Is an eSIM or a SIM card better for Korea?

For most travelers with a recent, carrier-unlocked phone, an eSIM is the lower-hassle choice because you install it before you fly and it activates on arrival with no counter visit. A physical SIM card is better if your phone doesn't support eSIM, is locked, or you specifically want a local Korean number. Neither is automatically cheaper - price depends on data size and trip length, not the format - so the real deciding factors are your phone's compatibility and how much arrival-day hassle you want to avoid.

Will a SIM or eSIM work as soon as I land in Korea?

An eSIM usually connects the moment you land if you install it at home beforehand and enable data roaming for that line on arrival - installation needs internet, so doing it at the airport is the classic mistake. A physical SIM works once you insert it and it registers, which can mean a short counter stop after landing. If being online instantly matters, an eSIM installed in advance is the most reliable.

Does my phone support eSIM for Korea?

Most flagship phones from the last few years support eSIM - recent iPhones, Samsung Galaxy S models and many Pixels - but it varies by model and region, and the phone must be carrier-unlocked. Check your phone's settings for an option to add an eSIM or cellular plan, or confirm with your carrier before traveling. If it doesn't support eSIM, a physical travel SIM is the way to go.

Can I keep my home number while using a Korea SIM or eSIM?

With an eSIM you can usually keep your home SIM active for calls and texts while the eSIM handles Korea data, since the two lines run side by side. With a physical SIM on a single-SIM phone, you remove your home SIM to insert the Korea one, so home calls and texts wait until you swap back. If staying reachable on your home number matters, an eSIM (or a dual-SIM phone) handles it more gracefully.

Do I need a local Korean phone number as a tourist?

Most short-trip travelers don't - maps, translation, messaging and bookings run on data, and you can call via apps like KakaoTalk, so a data-only eSIM covers the typical trip. You'd want a local number mainly if a specific service requires SMS verification to a Korean number. If that's you, choose a SIM or eSIM plan that explicitly includes a local number and confirm before buying.