SEIO Agent

Name: SEIO Agent
Rating: 4.0526314 (14213 reviews)
Author: SKTelecom

SKTelecom

★ 4.1 (14,213 ratings)

⬇ 50,000,000+ downloads

Est. actual: 78,552,910

Free

Released: Jul 9, 2013

No in-app purchases

No ads

Rated: Everyone

Signals

4 this week · 1 positive · 2 warnings All of this week's signals →

📈Last 7 days +252K installs — 18% slower than the week before (+306K) · 31K/day since Sep 29
🏆Among Tools apps top 1% by installs gained this week (1062 peers growing)
⭐Rating steady at ★ 4.05 since Sep 29
🛠Updates dormant · updated 177 days ago

Installs since launch

+1,168,162 installs · +26 ratings since Sep 29

Update history

3.8.9 May 18, 2026 · seen Sep 29, 2026

※ SEIO Agent 3.8.9 업데이트(5/18)<br>01.보안 강화

Only the current version so far — new entries appear as the app ships updates.

SEIO Agent is a tools app by SKTelecom with 50,000,000+ downloads (about 79M estimated). +252K installs in the last 7 days. Rated 4.1 from 14K ratings. Released Jul 9, 2013. Install growth, rank history, SDKs and ad networks.

From the store listing: “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…”