SEIO Agent

4.0
13.8K reviews
50M+
Downloads
Content rating
Everyone
Screenshot image
Screenshot image

About this app

SEIO Agent is an essential service app for using SKT USIM supplementary services (NFC, authentication, etc.).

-If the app is deleted or the service is stopped, USIM supplementary services may not work properly.
-Please note that the service does not run directly, not individual apps.
-After installation, please relaunch the app using USIM information such as PASS, mobile T-money, Cashbee.

Contact: usp@sk.com
Updated on
Jul 10, 2025

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
This app may share these data types with third parties
Device or other IDs
No data collected
Learn more about how developers declare collection
Data isn’t encrypted
Data can’t be deleted

Ratings and reviews

4.0
13.5K reviews
Richard Prasad
February 7, 2025
Not helpful, app does not have good reviews in Korean, not sure why this is necessary for SKT customers to use this app for the transportation card feature of credit card
4 people found this review helpful
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SKTelecom
February 7, 2025
Hello, customer. This is SK Telecom's SEIOAgent operation team. SEIOAgent is an intermediate interface app for communication between apps that provide USIM additional services (NFC, authentication, etc.) and the USIM and does not operate separately. Please note that it is an app that works in the background and does not run directly. Thank you.
Mhean Vill
January 24, 2023
I don't need this & I want to remove this.. pls respond in English
28 people found this review helpful
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SKTelecom
January 25, 2023
고객님, 안녕하세요. SK텔레콤 SEIOAgent 운영팀입니다. OS 버전이 안드로이드 10 미만이거나 국내용 삼성/LG 기기가 아닌 경우 기기에서 설정 > 애플리케이션 > SEIOAgent > [삭제] 버튼을 눌러 앱을 삭제하실 수 있습니다. OS 버전이 안드로이드 11 이상인 국내용(SKT) 삼성/LG 기기인 경우 OS 설치 시 시스템 앱으로 자동 설치되기 때문에 삭제하실 수 없습니다. SEIOAgent는 SKT 유심 부가서비스(NFC, 인증 등) 이용을 위해 꼭 필요한 앱입니다. 이 앱이 삭제되거나 서비스가 정지될 경우 유심 부가서비스를 정상적으로 이용하지 못할 수 있습니다. 감사합니다.
anthony odeke
August 25, 2022
Does this app work in Uganda and how does it help a Ugandan
15 people found this review helpful
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SKTelecom
August 25, 2022
고객님, 안녕하세요. SK텔레콤 SEIOAgent 운영팀입니다. SEIOAgent는 SKtelecom 사용자를 위한 앱입니다. 해외에서 타 통신사 사용 시 이용에 제한이 있을 수 있으니 서비스 이용에 참고해주시기 바랍니다. 리뷰를 남겨주셔서 감사합니다.

What’s new

※ SEIO Agent 3.8.5 업데이트(7.10)
01.targetSDK version 수정

App support

Phone number
+8215990011
About the developer
에스케이텔레콤(주)
skt_app@sktelecom.com
중구 을지로 65 (을지로2가) 중구, 서울특별시 04539 South Korea
+82 2-6100-7355

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