Korea App Auto-Logout: The Real Reasons It Happens to Foreigners (2026)
You open a Korean app that worked fine yesterday. Today it wants you to log in again. Fine. You type your password. It's correct. And then the app asks for phone verification. Or identity confirmation. Sometimes the verification screen won't even accept the number you're typing, even though that same number just received a text from your hotel five minutes ago. This is where many foreigners get stuck. Korean apps often have more than one layer between you and the service you are trying to use. Logging into an account is one thing. Proving that the account belongs to you through a Korean identity-verification system can be something else entirely. That difference can be easy to miss until the app suddenly logs you out. Sometimes the reason is simple: your session expired. Other times, the app noticed a new device, a different login environment, or a security change. And sometimes the real problem only appears when the app asks for a type of Korean identity verifica...