How do I know which of my contacts use LINE?

Question

I installed LINE on my cell phone and some contacts were added instantly in my LINE friend list. This means that the others don't have LINE or for some reason I cannot see it? How can I see who is a user?

Answer 1

LINE, like any other software of this kind, uses the built-in phone contacts to scan for the users who use the same service. This means that only the contacts who use LINE will be displayed. The other ones don't use LINE or they installed another application for this type of communication.