After WhatsApp’s big reveal, almost every other IM addict is looking for an alternative. Signal, which was launched right after WhatsApp was acquired by Facebook in 2014, has become the obvious choice thanks to the plethora of privacy options it offers, but Telegram isn’t far behind either.

According to recent reports, Telegram has gained over 25 million new users in the past few days, pushing the service past the famous 500 million mark. It doesn’t offer End-to-End Encryption as its default encryption protocol, but the option is available on the app if you know where to look. For top-notch security and trust, Telegram is a great option, and today we’ll help you get on board.

Related: How Does Telegram Make Money?

Telegram is available on mobile — iOS and Android — Windows, Mac, and even the web. Below, we’ll take you through them all.