A free program for Android, by SKTelecom.

T world is a free mobile application for SK Telecom customers to easily check their remaining data, voice, and text volume, and to manage their subscription products and services. You can also check the history of charges and gifts, make a list of frequently asked questions (FAQs), and find the locations of SK Telecom stores and after-sales centers.

You can check the data, voice, and text volume remaining amounts and the history of charges and gifts, and set up the fee guide, real-time usage fee, charge guide settings, payment method, and cell phone payment.

You can view the benefits you have received, such as the data gift, mobile phone payment, content usage fee, and coupon, and the events you have registered for. You can also view the products and services currently in use and check/use various SK Telecom products and services.

You can check the phone number of the device you connected to when you log in, check the status of your Google account when you sign up for membership, and make a direct phone call to find a store.

You can make a list of FAQs and find the locations of SK Telecom stores and after-sales centers.

You can view the products and services currently in use and check/use various SK Telecom products and services.