Telegram is a free cloud-based instant messaging service. There are Telegram clients for both mobile (Android, iOS, Windows Phone, Ubuntu Touch) and desktop systems (Windows, macOS, Linux). Users can send messages and exchange photos, videos, stickers, audio, and files of any type. Telegram also provides optional end-to-end-encrypted messaging.
Telegram is founded by Russian entrepreneur Pavel Durov. The service also provides APIs to independent developers. In February 2016, Telegram stated that it had 100 million monthly active users, sending 15 billion messages per day. This application has provided businesses with a perfect opportunity to start their digital advertising campaign and see themselves closer than before to their clients and audience.
Telegram currently has more than 45 million users in Iran, equal to 56% of the Iranian population. The majority of the most popular and followed Telegram channels fall under the category of news and entertainment, such as the news channel @Iranfnews, and @Niazcom_ir entertainment channel, with roughly 2 million followers each.