Korea Transit Card Balance is a must-have Android app for anyone traveling to Korea. The app, developed by YEAHH, is a free travel and navigation tool that falls under the maps and GPS subcategory. This app is designed to help users check the balance of their Korean transit card, including T-Money, Cashbee, Hanpay, Rail-plus, or M-Pass, from their Android device.

One of the best features of this app is its ease of use. Simply enable the NFC read/write mode of your Android device, tap your card on the back of your phone, and you can see the basic information of your card, including your balance and transaction history. This app is perfect for avoiding embarrassing situations when taking buses or subways in Korea.