Mobile transit card vs IC transit card 
The Mobile transit card and IC transit cardare two different services!
Mobile transit card Eligibility : This service is available for users with Android smartphones that support NFC functionality and run Android OS 6.0 or higher. (iOS is not supported.)
IC transit card Eligibility : Anyone with a Trip.PASS card can use this service.
TripPAY → IC Transit Card Charge
You can charge a physical transit card through TripPAY,
and freely convert the balance between
TripPAY
Trip.PASS Card [traffic]
*No fees will be charged for balance conversion.
1.
Use NFC to scan your TripPASS card for linking.
2.
Tap the [Charge] menu.
3.
Enter the amount to charge, confirm, and agree to the transit card terms of use.
4.
Tap [Charge].
5.
Use NFC to scan your Trip.PASS card again.
6.
Charging complete!
Key points you must check!
•
It can be used for all transportation in Korea, including subways, buses, taxis, KTX, and more.
•
The charge limit is a maximum of 90,000 KRW per transaction and up to 200,000 KRW per day.
•
Based on the age information in your passport, the fare will be automatically set to adult, youth, or student rates.