The safe and private instant messaging and chat clientĪnd although now all apps of this kind have gradually incorporated more security layers to their developments, it was the first important messenger to include encryption to its messages, allowing its users to hold completely private conversations. In fact, many of its features have later been implemented by the messaging giant purchased by Facebook, as well as other similar apps. It was first released on mobile phones and a year later as a multiplatform version, offering a model that didn't go against WhatsApp but was slightly different. However, that year Telegram made its appearance, a messaging application developed by the Russian brothers Nikolai and Pavel Durov. It was establishing itself as the most used mobile instant messaging and chat application in the world, increasing its distance in terms of users with all its rivals and alternatives such as Skype, LINE or Kik Messenger.

In the year 2013, WhatsApp already ruled the world.

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