LINE is totally a service of rapid (single chat, of group and ghost) messages, calling vowels and free video. App very appreciated above all in the oriental countries, he is also spreading quickly in west; we could define it a mix among WhatsApp, Skype and a pinch of Facebook. The simple and essential Timeline allows to share texts, photo and video (also in HD) with the friends. This last ones I am easily added with the ID LINE or through code QR. Application multi-device it is practically available for all the smartphones in circulation and you can be also installed on the computer; in the guide we will see whether to proceed.