Telegram is a messaging app founded by brothers Pavel and Nikolai Durov. It launched in 2013. Pavel Durov had earlier founded VKontakte, a large Russian social network. Telegram is now based in Dubai.
Messages are stored in the cloud, so users can read their chats on several devices at once. Standard chats are encrypted between the device and Telegram's servers. Secret Chats use end-to-end encryption and stay on one device. Groups can hold up to 200,000 members, and channels let one account broadcast to an unlimited audience. Bots, mini apps and large file sharing make Telegram popular with communities, news outlets and businesses.
Telegram is free. Telegram Premium is an optional subscription that adds larger uploads, faster downloads, extra reactions and voice to text. The company also earns money from ads in large public channels. Telegram runs on iOS, Android, Windows, Mac, Linux and the web, and its client apps are open source. It is used across Europe and is especially common in Eastern Europe, the Middle East and Asia.