Check before you fly: will your apps work there?

4 of your 4 apps may behave differently

• ✕TikTok — Not available over a travel planTikTok does not serve Hong Kong or Chinese addresses (Hong Kong since 2020). No travel eSIM fixes this, because the restriction is TikTok's own.
• !LINE — 비행 전에 준비하기LINE is commonly unreliable on local networks and sometimes fails even over a foreign route. Keep a backup way to reach people.
• !Google Maps — 비행 전에 준비하기Whether Google Maps loads depends on routing, and map data in China is often offset from real positions. Download offline maps and keep a local map app as backup.
• !Instagram — 비행 전에 준비하기Depends on whether the plan routes your traffic through a foreign network; nobody can guarantee it, so read the plan page.

In China, foreign apps are commonly blocked or unreliable on local networks (a Chinese SIM or hotel Wi-Fi). Some roaming-based eSIM plans route traffic through a foreign network, so these apps often open, but it depends on the plan.