What do you need to know about telegram?

Here’s everything you need to know about Telegram, including what it is, what features it offers, how encrypted it is, how much it costs and who owns the app. What is Telegram? Telegram is a free, cloud-based instant messaging app available across a range of mobile and desktop platforms, including Android, iOS, Windows, macOS and Linux.

What is Telegram Messenger?

Telegram Messenger is a globally accessible freemium, cloud-based and centralized instant messaging (IM) service. The application also provides optional end-to-end encrypted chats (popularly known as "secret chats") and video calling, VoIP, file sharing and several other features.

Is Telegram a free app?

Telegram has various client apps, some developed by Telegram Messenger LLP and some by the community. Most of them are free and open-source and released under the GNU General Public Licence version 2 or 3. The official clients support sending any file format extensions.

What type of encryption does telegram use?

Telegram uses a custom build symmetric encryption scheme called MTProto. The protocol was developed by Nikolai Durov and other developers at Telegram and is based on 256-bit symmetric AES encryption, 2048-bit RSA encryption and Diffie–Hellman key exchange. As with most instant messaging protocols, Telegram uses centralized servers.