Maps, translation, taxis and messaging
Some global map apps have limited walking or transit behavior in Korea. Install a local map app and save your hotel, airport, and first few destinations before you land.
This makes the first day much less stressful.
Camera translation is useful for menus, ticket machines, and small notices. It is not perfect, but it quickly reveals ingredients, rules, and basic directions.
For allergies or dietary restrictions, prepare a simple Korean sentence in advance.
Mobile data is usually reliable, but screenshots help when tunnels, basements, or roaming issues interrupt service. Save hotel address, booking confirmation, and a map screenshot for each day.
This is especially useful when taking taxis or meeting a guide.
Some local services, tours, or small businesses prefer messaging apps instead of email. Check the contact method before assuming email will be fastest.
If you cannot use the local app, ask your hotel or host for help with confirmation.
During travel, speed matters. Put your map, translator, taxi, airline, hotel, and payment apps in one folder or on your first screen.
It sounds small, but it saves attention when you are moving through crowded stations.