Subcategory: Instant Messengers, VoIP Clients
Platform: Android, HoloLens, iOS, Linux, OS X, Windows, Xbox One
Programing language: C++
First release: August 29, 2003
Skype – an application which lets users to make voice or video calls and keep in touch via an instant message system. It is available for many devices and operating systems such as smartphones, tablets, PCs, Macs and Linux.
The main features of Skype are:
– Video calls – don’t just hear the cheers, see it. Get together your friends and family on a video call. Watch your everyone’s smiles and cries when you tell them “We’re engaged!”
– Chat – reach people instantly. Send messages to your friends, liven up conversations with emoticons and Mojis, or create a group chat to make weekend plans with up to 300 people.
– Share – share your screen, photos, videos, documents, and files with your family and friends. Unlike email, Skype will transfer up to 300MB per file.
– Voice calls – make voice calls to anyone on Skype. You can also call mobile and landlines at low rates.
Skype uses a proprietary Internet telephony (VoIP) network called the Skype protocol. The protocol has not been made publicly available by Skype, and official applications using the protocol are closed-source. Starting from 2014, Skype uses a new protocol Microsoft Notification Protocol 24.
Skype was founded in 2003 by Niklas Zennström, from Sweden, and Janus Friis, from Denmark and the software was created by Estonians Ahti Heinla, Priit Kasesalu, and Jaan Tallinn.