On top of that, Telegram Desktop has a strong focus on security, to ensure your conversations and personal data remain private at all times. Not many popular messaging applications offer support for such a large number of platforms – from Android and iOS, to desktop operating systems such as Windows, Linux and Mac OS X. Telegram Desktop is a free messenger application with cross platform support that lets you communicate with other users in a secure and private manner. Telegram Desktop: A robust, cross-platform messenger for secure communication app