Cutegram is a free and opensource telegram clients for Linux, Windows, OS X and
OpenBSD, focusing on user friendly, compatibility with desktop environments.
Cutegram using Qt5, QML, libqtelegram, libappindication, AsemanQtTools
technologies and Faenza icons and Twitter emojies graphic sets. It's free and
released under GPLv3 license.

WWW: http://aseman.co/en/products/cutegram/