uTox

uTox screenshots

uTox is a lightweight, intuitive, and easy-to-use Tox client.
Main Window
uTox 1.0 : Main Window

Alternative downloads

TFTP Client
1.2.2
First full-featured TFTP client for the Macintosh.
qtox
1.1.20
FREE
Powerful Tox client that tries to follow the Tox design guidelines.
Poison
1.1.11
FREE
It is a Mac client for Tox, with support for file sharing and group messaging.