All your physicalKorean transit cards,together
Scan your cards for balances and journeys. See where you travel most on interactive subway maps of South Korea.
- Needs an iPhone or an Android phone with NFC.
- Works with One Card All Pass cards such as Tmoney, EZL and Rail+, and with Climate Card and Rail+ type cards such as NAMANE.
Your card stays put. Scanning starts when you say so.
Keep your transit card in the clear case on the back of your phone, exactly where it is now. TapChae-K never opens on its own when your phone senses the card.
Open TapChae-K
Only when you want to check a card.
Tap “Scan Card”
Hold the card to the back of your phone. In its case is fine.
See what is new
Your balance and latest journeys are added to your history.
iPhone
Actual iPhone and Android screens show fictional sample records with Premium enabled.
Own as many physical transit cards as you like
Manage them all in one place. TapChae-K keeps them organised. Scan regularly to build your saved history, whichever card you tapped.
View your Climate Card pass details
Read the pass type and validity from your physical Climate Card.
iPhone
A balance tells you what is left. A journey tells you what happened.
TapChae-K keeps track of each journey from your card, so your history is more than a list of deductions. See how far you travelled, what you paid, where you transferred and how long you spend on trains and buses. Once you know your hours on the move, you can plan how to use them.
Distance and time
Distance and travel time, where available
Distance is shown when recorded on the card. Availability varies by transport operator in South Korea.Expenses
What each journey cost, and what you topped up
Transfers
Transfers grouped into a journey
Names and notes
Give locations your own names and add notes only you can see
Your journeys, day by day
See journey locations, fares, travel time and distance. Date filters are included with Premium.
Android
Top-ups and fares, in one view
Check recorded top-ups and fares, including separate tap-ins and tap-outs. Data export is included with Premium.
Android
See where you travel most
See your station visits across all your saved cards. Coloured rings show how often you visit each station.
Select a station to see your visit summary. Keep scanning to build your record over time.
Android foldable
iPhone Duo
Made for foldables and iPhone Duo
Explore your cards, journeys and maps with layouts that make use of your unfolded screen.
Explore South Korea’s subways
Search for stations, explore lines, see Express stops and check Climate Card coverage on the Seoul map. Maps stay sharp as you zoom.
- Seoul Capital Area
- Busan · Ulsan · Gyeongnam
- Daegu · Gyeongbuk
- Daejeon
- Gwangju
Screens show fictional sample records with Premium enabled. Detailed visit history is available through Premium.
Your records stay on your phone
TapChae-K does not need an account. The balances and journeys it records from your card, and your notes, are kept on your device, not on our servers. Clear the app's data and they are gone. Premium users can also lock TapChae-K behind their device's screen lock.
More from every scan with Premium
Card balances, journeys, transactions, subway maps, visit rings and station summaries are free. A one-time Premium purchase removes ads and adds transfer-time reminders, detailed visit history, date filters, calendar export, data export and Privacy Lock. No subscription.
Premium is purchased separately on Android and iOS.
Before you scan
Are the subway maps free?
Yes. Maps for all five regions, station search, Express mode, Climate Card coverage, visit rings and station visit summaries are free. Premium adds detailed visit history and removes ads.
Which Korean transit cards can I check?
TapChae-K reads supported physical Tmoney, EZL and Rail+ cards, including Rail+ type cards such as NAMANE. You can also view pass details read from a physical Climate Card. The information available depends on the card.
Can I use my iPhone or Android phone?
Use an iPhone with iOS 27 or later, or an NFC-capable Android phone with Android 11 or later. You also need a supported physical transit card. Check the store listing for device compatibility.
How do I check my card balance and journeys?
Open TapChae-K, tap “Scan Card” and hold your physical card to the back of your phone. The app records the available balance and journeys when you scan. Scan regularly to build your saved history; it does not update between scans.
Can I top up my card in TapChae-K?
TapChae-K reads information from your physical card. It does not top up the card or change its balance.
Scan your first card
The more often you scan, the more complete your travel log, and the more in control you are of every day on Korea's transit.
From RW MobiMedia, helping people check their Korean transit cards since 2013, with over a million downloads.