Worse app ever
can‘t sign up
Login Error
Horrendous
Inexcusably archaic backup architecture
Transferring to a new phone completely wrecked my account. Because standard phone verification is a mess for US numbers, I was forced into the "Easy Transfer QR code." What they don't make obvious is that the QR code only copies the last 14 days directly. For the rest, it relies on whatever random cloud backup you have.
Turns out, LINE’s
background auto-backup had silently failed years ago without a single warning. Instead of flagging that the backup was years out of date, LINE just restored an ancient snapshot and instantly nuked the database on my old phone. Years of chat history, shared memories, and conversations were vaporized in seconds, with zero warning and no way to get them back.
It is mind-blowing that an app this massive still uses software architecture so fragile that it wipes your local data without asking. If you actually care about keeping your chat history maybe consider another app.
Worst app when you buy a new phone
No way to sign in
Nor can I creates new account because phone number not allowed in USA, and my apple account is already assigned to the account it won't let me sign in to. Major fail!
Ridiculous restrictions on login from new phone
cant access my account from United States
Cannot access my account
Ridiculous
App is completely unusable
When I try to sign up for a new account, it won’t let me because my Apple ID is connected to my old account which I cannot get access to! Line support is zero help and if you want to actually talk to someone from line, it can only be done through the app! Kind of a big problem when the issue is I cannot sign into the app.
It is legitimately as if they do not want people to use their app. I don’t think I’ve ever had a more frustrating experience with any app and I wish I could give this zero stars. Find any other messaging app to use if possible!
Bad Ai system
Arbitrary blocks nonexistant customer support
Terrible
No Google option. No phone-number signup. No way to simply say “I want a new account.” Even their support documentation sends you in circles.
A messaging app should not make creating a new account this complicated. This is one of the most frustrating account setup experiences I’ve encountered.

