In a significant update for its users, LINE has officially lifted the single mobile phone login restriction with the launch of version 15.3.0, allowing the same account to be used on multiple devices simultaneously. This much-anticipated feature enables users to log in to LINE across up to five devices, which may include smartphones, tablets, computers, and even smartwatches.
Launched on March 19, 2025, this new functionality directly responds to user feedback, as many have expressed frustration over the inability to use the same LINE account on different devices, especially when compared to other messaging platforms. This update finally provides users a way to maintain connectivity across their preferred devices, enhancing the overall user experience.
The update means that up to five devices can be logged in simultaneously: typically, users can choose one mobile phone as their primary device, along with a computer, an iPad, one Android device (either a phone or tablet, although only one Android can be logged in as an 'additional device'), and one wearable device. For example, an Android tablet could be utilized as an additional device while still enabling the primary account to function on an iPhone or another Android device.
Importantly, it should be noted that iPhones will only be able to function as primary devices. Users cannot log in to the same LINE account on two iPhones simultaneously, an aspect that has disappointed some users who had hoped for more flexibility.
How does it work? Updated users can simply follow these simple steps to log in to their additional devices. First, they need to enter LINE on their Android device, select login, and then choose the option for 'additional device.' They can then either scan a QR code or use their email to log in successfully. The functionality promises to make the onboarding experience much smoother for users who wish to switch between devices seamlessly.
The introduction of the 'main device' and 'additional device' concepts is aimed at helping users distinguish between their primary and secondary devices. The main device is where the account was originally registered and allows for full account management capabilities. These responsibilities include the ability to modify account details like phone numbers and passwords, along with executing crucial actions such as backing up chat histories and purchasing stickers or other paid items. In contrast, the additional devices will have some feature restrictions; while they allow users to send messages and view some LINE content, they will not support functions such as LINE Pay or purchasing premium stickers.
The response to this feature has been overwhelmingly positive so far, with many users expressing excitement over not being tied to just one device. As noted by LINE’s official Twitter account, this development has been highly requested by users for a considerable amount of time: “Many requests have been received, and we are happy to introduce support for multiple device login on Android devices!”
Despite this significant advancement, LINE users are advised to remain vigilant regarding their account’s activity. Users can check what devices are currently logged in through the LINE settings, laboring under the 'My Account' section where they will see which devices are active and can ensure their accounts are secure by logging out of any unidentified devices.
As generations of users have become accustomed to multi-device support across various applications, LINE’s step to finally allow multiple logins on Android devices signifies a crucial advancement in user experience. With this update, LINE users can now effortlessly make use of their accounts across multiple platforms, ultimately fulfilling the needs of a more connected, mobile lifestyle.
This update concerns all LINE users, particularly those in regions like Taiwan, where communication services have covered various devices. The introduction of the new update is set to make a noticeable difference for users across the island, as they can now maximize the functionality of their LINE accounts in daily life.
In conclusion, LINE’s version 15.3.0 update marks a pivotal moment for the service, bringing multi-device login capabilities not only to Android users but also enhancing cross-device compatibility between platforms. While limitations remain regarding the use of two iPhones logged into the same account, users of Android devices now have considerably greater flexibility than ever before.
