Quick snapshot
LINE is a multifunction messaging app that combines instant messaging, voice and video calls, media sharing, and a social feed. It works on smartphones and desktops, and has become popular for both personal chats and following brands or celebrities. If you prefer exploring other options, KakaoTalk is a strong alternative offering free voice calls, messaging, and content sharing.
Core features at a glance
- Cross-device messaging (desktop and mobile sync)
- Free video and voice conversations between LINE users
- Support for group chats with large participant limits
- Premium calling to contacts who don’t use LINE
- Rich stickers, emojis, and customizable themes
- Timed “Hidden Chat” messages that disappear after viewing
- Photo, video and post sharing via a Timeline-style feed
- Follow official accounts for companies and public figures
Calling and messaging quality
Setting up LINE is straightforward — you can register with a phone number or an email address (note: email-only registration may limit some features). Voice and video calls generally deliver clear audio and solid picture quality; occasional latency can appear on Wi‑Fi or mobile data, but most users find the experience comparable to or better than many competing apps. Group calling, in-app call notifications, and the ability to initiate calls directly from alerts are supported.
Social and discovery tools
LINE’s Timeline turns chats into a light social network: friends can post updates, share photos and stickers, and react with likes and comments. Businesses and celebrities maintain official accounts you can follow for updates and promotions. If you’re not connected to many friends yet, a “shake” or touch-based discovery option helps you find nearby users to chat with.
Privacy controls and temporary messaging
You can block or hide specific contacts to prevent unwanted messages. The Hidden Chat function provides Snapchat-style, time-limited messages that are only visible for a preset duration after the recipient opens them. Additionally, you can control whether linked companion apps send messages to your account.
Customization and companion apps
LINE offers a wide selection of sticker packs, emoticons, and visual themes. A range of spin-off apps extends the platform into games, photo tools, and other utilities — and you decide which of those apps can interact with your main LINE account.
AI assistant integration
LINE includes an integration with OpenAI’s ChatGPT, often referred to in-app as an AI chat assistant. It can handle tasks like drafting long-form text, generating travel plans, composing emails, pulling up recipes, and answering general questions. Currently, this feature is primarily available in English and optimized for desktop use, so on-device users and speakers of other languages may face limitations.
Who should consider LINE
If you want more than basic messaging — for example, a combined chat, calling, and light social experience with lots of stickers and third-party apps — LINE is worth trying. It’s a solid choice if you value cross-platform sync and rich media features; if you prefer a different look or ecosystem, KakaoTalk is a commonly recommended substitute.
Final impression
LINE packs many communication and social tools into a single app while remaining relatively easy to use. It’s a versatile alternative to apps like WhatsApp, Viber, and Tango, offering high-quality calls, ephemeral messaging, and a broad ecosystem of extras.
Technical
- Windows
- Android
- iPhone
- Mac
- German
- English
- Spanish
- French
- Italian
- Japanese
- Korean
- Portuguese
- Russian
- Turkish
- Chinese (Simplified)
- Free