LINE for iPhone

Quick summary

LINE is a cross-platform messaging app that supports free text, voice, and video conversations from both mobile devices and desktop computers. It combines instant messaging with social features like a Timeline, and also lets users follow brands and public figures. The app includes tools for media sharing, short video creation, and a range of privacy and contact-management options.

Key capabilities

• High-quality voice and video calling between LINE users, including Android-to-iPhone connections.
• Group chats that can include large numbers of participants, with extensive sticker and emoji libraries to personalize messages.
• Integration with public accounts so you can follow businesses, celebrities, and brands for updates and promotions.
• The Snap Movie tool for creating short clips with music and sharing them with friends.
• Options to place premium calls to people who aren’t on LINE, plus the ability to block or conceal specific contacts.
• A Timeline feed where friends can post updates, photos, and stickers and receive likes and comments.

Installation and performance notes

Getting started is straightforward: register with your phone number or an email address. Be aware that registering with email may limit some features to text chat only. In practice, the voice and video call quality is generally excellent, though brief delays can sometimes be noticed on both Wi‑Fi and mobile data connections. Overall, call audio typically outperforms many competing services.

Chat experience and usability

The messaging interface supports one-on-one and large group conversations, and its emoticon/sticker catalog is extensive. However, because the app presents many menus and features, some users report it’s easy to lose track of where they are—especially when navigating the Timeline or jumping between linked apps. Search and organization tools are available to help locate chat rooms and past conversations.

AI assistant inside the app

LINE includes an integrated AI chatbot powered by the ChatGPT API, often referred to as AI Chat-kun. This lets users run complex prompts without leaving the app — for example, composing long-form text, planning trips, generating email drafts, creating recipes, or requesting advice. Currently the feature is optimized for English-language use and performs best on desktop platforms, so mobile users and non-English speakers may encounter limitations.

Privacy, search, and shortcuts

• Hide specific chat rooms from your main list or block contacts you no longer want to hear from.
• Use the chat room search feature to quickly locate messages and conversations.
• Create shortcuts for LINE Premium Call and other frequently used functions to speed up access.

Recent improvements

LINE has been updated to suggest stickers and emojis based on the text you type, making it faster to add expressive content. The app also added support for Arabic and continues to expand language and usability options.