The program interface Telegram has, the most important function is difficult to find a communicator with such a clear interface. Another advantage is the ability to attach files to chat, watch movies directly in the application without opening a web browser, stickers, voice messages, intuitive switching between chat rooms. The Telegram is cross-platform, so it is available everywhere. It is difficult to find systems for which Telegram does not exist. Windows, Mac, Linux, Android, iOS - ideal. The Telegram also has a web version, so that even if any system does not have an application, you can always use the web version. Due to its unique platform, the communicator is also used as a file repository for transferring photos and other data.
I miss the ability to perform secret chat on pc or via a browser.
I recommend the telegram to people looking for an instant messenger with extensive chatting capabilities, which is available free of charge with support for many languages.
The telegram has become the primary communicator, which is used not only to contact team members but also friends.