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Essential Apps

Install these before you land. Korea has its own app ecosystem — some Western defaults don't work as well here.

Navigation

Naver Maps
Best map app in Korea — Google Maps has limited data here
Real-time transit, walking directions, and accurate local business info. Switch to English in settings.
App Store Google Play
Must install English supported
Subway Korea
Offline Seoul subway map with English route planning
Works without data. Essential for navigating between conference venue and sightseeing spots.
App Store Google Play
Works offline English

Translation

Papago
By Naver — significantly more accurate than Google Translate for Korean
Camera mode lets you point at menus or signs to translate instantly. Download offline Korean packs before arriving.
App Store Google Play
Must install Camera translate Offline mode

Getting Around

Kakao T
Korea's dominant taxi app — works like Uber
See fare estimates, get picked up. English interface. Most reliable way to get a taxi, especially late at night. Pay by card in-app.
App Store Google Play
Taxis English supported Card payment

Food Delivery

Baemin (배달의민족)
Korea's largest food delivery app
30–60 min delivery. Interface is Korean — use Papago to read menus.
App Store Google Play
Delivery
Coupang Eats
Often slightly faster than Baemin
Good selection around the Gangnam and COEX area.
App Store Google Play
Delivery Fast
Yogiyo (요기요)
Third major delivery option
Alternative delivery app with a different restaurant selection. Worth having as a backup when the other two have long waits.
App Store Google Play
Delivery Backup option

Communication

KakaoTalk
The messaging app everyone in Korea uses
You'll likely be added to ICML group chats here. Install before the conference starts.
App Store Google Play
Must install Everyone uses this

Connectivity tip

Get a Korean eSIM or SIM card at Incheon Airport (arrivals hall). A 10-day data SIM costs roughly 15,000–25,000 KRW (~$11–18). Recommended carriers: KT, SKT, or LG U+. Or order an eSIM in advance via Airalo before flying.