Telegram messenger is worldwide use for instant messaging. It is a cloud-based messenger that provides the facility of voice over IP and video telephony services. This messenger provides the secrecy with a strong end to end encryption. The encryption use between client to server and server to client. 

The app is  available for Windows, Android, Mac OS, IOS, Windows Phone, and open-source operating systems. Users can send any type of file, videos, audios, photos, and stickers, etc. On 14 Aug. 2013, the telegram messenger was first initially released. The user of the telegram messenger exceeds 400 million in April 2020.