The bottom line
The bottom line — WOWPASS wins on rate and on peace of mind. Credit cards really are easy, but you can get the same kind of ease with WOWPASS after a single top-up step.
The good thing about credit cards is that they need no preparation. You bring the card you use at home and skip the whole exchange process. Major Korean stores accept contactless widely, so paying is as quick as tapping the card at the register.
The catch is the overseas fee. 3.85% is the current norm (it varies a little by issuer), which means that for every JPY 100,000 spent you pay 2,449 JPY more than with WOWPASS.
WOWPASS is a Korea-only prepaid card. Top it up once and from then on, paying is just inserting the card. No signature, no PIN — the experience at the register is no different from a credit card.
On top of that, your balance is visible so you cannot overspend, you can lock the card instantly from the app if you lose it, and damage stops at the balance. It also works as T-money for trains and buses — kinds of peace of mind that a credit card simply cannot offer.
Beating a credit card takes
just one small step.
Rates compared on a JPY 100,000 budget
Below, a WOWPASS top-up and a VISA credit-card payment (with the standard 3.85% added) are listed side by side, in KRW received per JPY 100,000 and difference vs. WOWPASS. Auto-fetched rates as of 2026/05/26.
- WOWPASS top-upCash top-up at kiosks · 402 locations nationwide · same rate 24/7931,889₩baseline
- Credit-card paymentVISA · including the standard 3.85% overseas fee908,666₩2,449 JPYloss
Note: Auto-fetched rates as of 2026/05/26. Exchange rates fluctuate, so check the actual rate just before you pay.
Note: The overseas fee is set by the issuer, not by the card brand (VISA / Mastercard). 3.85% is currently the norm and is used as the basis here, but it varies slightly by issuer.
Note: For comparisons that include Myeongdong, airport banks, and other methods, see Best places to exchange money in Korea and Today's rate comparison.
Credit cards — easy, indeed
The biggest appeal of credit cards is that they need no preparation at all. Bring the card you already use at home, tap at the register, and you are done. No need to find an exchange counter or operate a kiosk. Contactless is now broadly accepted in Korea — convenience stores, cafes, restaurants, even taxis.
For someone who "wants to do nothing to prepare for a Korea trip," a credit card is the shortest route. Pull out the wallet, tap, done.
The cost is the fee. When you use it overseas, an overseas transaction fee set by your issuer is added on top (it is determined by the issuer, not by the card brand — VISA or Mastercard). 3.85% is currently the norm, and this article uses that as the basis. Spend JPY 100,000 and you pay 2,449 JPY more than with WOWPASS.
WOWPASS — equally easy, wins on peace of mind
WOWPASS is a Korea-only prepaid card. Kiosks that accept cash top-ups in 14 currencies including JPY and USD are installed at 402 locations across Korea's major districts, stations, and airports.
Paying in store is just inserting the card (no contactless — it is read through IC contact). Once it is inserted there is no PIN and no signature, so the motion at the register is no different from a credit card. Once you get used to it, it takes a few seconds.
You see the balance, so you do not overspend
Your WOWPASS balance is visible in the app at any time. You can only spend what you top up, so there are no unexpected charges. Budgeting becomes spending management — a strength only prepaid offers.
Lose the card and lock it instantly from the app; damage stops at the balance
If you lose your card, you can lock it on the spot from the WOWPASS app. No need to call a card company across a time zone and a language barrier — it is all on your phone. And even if it is used before you lock it, the damage stops at the topped-up balance — unlike credit cards, there is a hard physical limit. The peace of mind hits hardest when you are traveling.
T-money built in — one card for subway and bus, too
WOWPASS has T-money built in, so you can tap it on subways, buses, and some taxis (in-store payments use insert, but transit uses tap — T-money is a separate transit standard). A standalone T-money card itself costs 3,000 KRW, so you save the extra purchase. Credit cards are generally not T-money compatible, so fitting transit into a single card is unique to WOWPASS.
Withdraw the leftover balance as cash
If you finish your trip with balance left over, you can withdraw it as KRW cash at the kiosks (some machines also support JPY 10,000-yen-note withdrawals). Credit cards charge only what you spend, so they have no concept of balance; but being able to convert the balance back to cash when you need it works as a safety net during travel.
The "ease" of a credit card lasts only the moment of payment. With WOWPASS, that ease extends to balance management, theft protection, and transit. Once you get past the single step of topping up, the day-to-day experience is broader with WOWPASS — and beating the credit card on rate is a bonus on top. That is the answer of this article.
Enter the invite code for
cashback.
Enter the code below during your first WOWPASS app sign-up to receive 0.5% (up to 5,000 KRW) cashback on foreign-currency top-ups.
the app
from banner
card
Enter the code before registering your WOWPASS card in the app.After card registration, the invite code can no longer be entered. See how to enter →
You can check today's rates on the rate comparison page as well.