Bill Letter, used by 16 million, analyzes the basic information, smartphone use, and patterns and experiences of bill management of its user and then, reflects the needs of its user and communicate with him/her.

In addition to the invoice from SK Telecom, its user can check and manage about 100 kinds of invoices, including KT, LGU+, SK Broadbank, Hana Credit Card, Samsung Credit Card, City Gas, Seoul City Tax, Apartment Management Fee, and Cash Receipt, and each invoice is in different color so its user can acknowledge them at once.

It provides basic icons, for information, and color icons, for status. Color Icons are in 5 key colors – red, blue, violet, green, and orange – to specific its status.

Binding contents are provided from its main page. By modularizing tag binding contents based on a user’s interest, the user can receive necessary information, rather than irrelevant information.

Its user is allowed to make several payments at once. It supports the payment for various invoices, including SK Telecom, SK Broadband, and Samsung Credit Cart, in the same environment.

As a user-oriented invoice, Bill Letter offers proper benefits and services, designed based on the consumption patterns of a user. It communicates with its user by binding practical contents and provides a customized menus and flow line.