Yes. You can use it anywhere in the world as long as you have access to 3G or Wi-Fi.
In a Wi-Fi zone, you can use it for free.
If you use a 3G network abroad, an additional fee may be charged depending on your data usage.
So if you plan to use your smartphone abroad, make sure to check roaming charges in advance.
Your account will not be included in search results inside the LINE app in the following situations.
If you are using a standard account
A standard account in a category not reviewed or approved by LINE will not appear in search results in LINE.
If your account is not public
Even with an approved account, if your account is not public, it will not be included in search results. Please follow the steps below to make it public.
Go to Settings > Profile > Public Setting.
Go to Settings > Basic Account Settings > Display/Hide.