After installation, open the app with one tap, just like any other app — including the camera for scanning. Sign in once using the email address you purchased with.
iPhone / iPad (Safari)
Open the app link in Safari.
Tap the share icon at the bottom (a square with an upward arrow).
Choose 'Add to Home Screen'.
Tap 'Add'. The NHN icon is now among your apps.
Android (Chrome)
Open the app link in Chrome.
Tap the three dots ⋮ in the top right.
Choose 'Install app' or 'Add to Home screen'.
Confirm. The NHN icon is now on your home screen.
Computer (Chrome or Edge)
Open the app link.
Click the install icon on the right of the address bar (a screen with an arrow).