"Bill Letter" integrates and manages various bills, including telecommunications bills, credit card statements, local taxes (Seoul City), and city gas bills, previously received by mail or email. Experience a variety of value-added services, from asset management to real-time bill tracking and lifestyle benefits.

[Key Features]
■ Apply for bills, manage all your bills in one place, and conveniently pay them!
- SK Telecom / SK Broadband / Credit Cards (KB Kookmin, Samsung, Hana Card) / Local Taxes (Seoul City) / City Gas / Cash Receipts
- Pay your telecommunications bills with Kakao Pay / Naver Pay / Toss Pay / 11pay Money / Bank Transfer / Check & Credit Card / 11pay / OK Cashbag Points / Convenience Store QR Codes

■ Real-time bill details reveal your usage patterns!
- Real-time telecommunications bills / Data usage tracking / Last month's usage / Rate plan tracking, etc.

■ See your bills at a glance! - Telecommunication charges / card statements, local taxes (Seoul City), city gas, and other bills / car market prices, etc.

■ View valuable information, including card points, dormant deposits, and insurance payments!
- Integrated inquiry of card points, dormant deposits, insurance payments, and overpaid car insurance premiums, etc.

■ Enjoy personalized recommendations and events for Bill Letter customers!
- Additional services / events / recommended information

Receive various bills through 'Bill Letter,' your telecommunications and financial life in the palm of your hand.

You can receive all your bills in one place, safely and conveniently, reducing the risk of personal information leakage due to mail theft or loss.

• For any inconveniences, please contact Customer Service at 114 and we will promptly assist you.

[App Access Permissions]
- Phone (*Required): Required to maintain the authentication status received on your device and continue using Bill Letter.
- Notifications (Optional): Required to receive push messages.

- Physical Activity (Optional): Required to measure your step count with the pedometer service. - Disable battery usage optimization (optional): This permission is required for the pedometer service to measure and record your step count in real time.
*You can change app access permissions by going to Settings > Applications.
*App access permissions are only available on Android 6.0 or later. If you're using a version lower than 6.0, please update your software.

[Note]
- This service is available on Android OS 7 or later.
- For smooth use, please update your device's OS and app to the latest version.
- Data call charges may apply when using the service on 3G, LTE, or 5G. (Data call charges do not apply when using the SKT/SKB rate guide on an SKT mobile phone.)
- This service is only available to SKT, KT, and LG U+ subscribers. (Some MVNO subscribers may also be eligible.)
- Service availability may be restricted depending on your mobile carrier, privacy policy, and the identity of the subscriber. - If you register for SKT's billing information, the type of billing information you previously received (mail, text, etc.) will change to Bill Letter. You can change the billing information type in T World.
- Available payment methods may vary depending on the billing company.
*Developer Contact: +8215990011