Using the same LINE account on more than one device (main and sub devices)

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You can access LINE on multiple devices by using a main device along with sub devices.

Topics covered
- About main and sub devices
- Differences between a main and sub device
- Allowing logins on sub devices


About main and sub devices:
Main device
Your main device (typically your smartphone) is the device you used to create your LINE account. On your main device, you can manage your LINE account information, such as your phone number, email address, and password. To change your main device and use the same LINE account when you change devices, you need to transfer your LINE account.
warning icon  Be advised
If you register a new account using a phone number, Apple ID, or Google Account that is already verified on another main device, your previous LINE account will be automatically deleted. Please understand that we cannot restore an account after it is deleted.

Sub device
When you use the same LINE account as your main device on other devices (typically PCs or tablets), those devices are referred to as sub devices. By logging into a sub device with the LINE account information you registered on your main device, you'll be able to use the same account on both devices.

List of devices that can be used as a main or sub device
Refer to the table below for devices that can be used as a main or sub device. For example, an iPhone can only be used as a main device, and cannot be used as a sub device.
Main device Sub device
Smartphone iPhone Yes No
Android Yes Yes
Tablet iPad Yes Yes
Android Yes Yes
PC Windows OS No Yes
macOS No Yes
Chrome browser No Yes


Differences between a main and sub device:
Some features are restricted when using LINE on a sub device but are available on your main device, including:
• Managing your LINE account information such as your phone number, email address, and password
• Transferring your LINE account
• Changing your Letter Sealing settings
• Backing up your chat history
• Purchasing paid items (e.g. stickers, emoji)


Allowing logins on sub devices:
To allow logins to LINE on sub devices, refer to the steps below.

1. On your main device, tap the Home tab > Settings > Account.
2. Turn Allow login ON.