
Free
Signal
Free, open-source private messenger
Free
Free, open-source private messenger
Free
Conduct video conferences for free
Free
A free collaboration tool for businesses
Free
A simple free tool to conduct virtual meetings
Free
Live video chatting app
Free
Communication solution for businesses
Free
Free Snapchat filters for desktop
Paid
Cool Tool for Social People
Free
All-in-one app for chatting
Free
Free chat service for Mac
Free
Chat with friends worldwide for free
Free
A free program for mac
Free
A free program for mac
Free
Free and encrypted messaging app
Free
A free program for mac
Free
A Free Communication program for Mac
Free
Chat with your friends on the internet
Free
Open source MSN Messenger client for Mac
Free
A free collaboration tool for businesses
Free
Free feature-filled desktop messenger
Free
Free Snapchat filters for desktop
Free
A simple free tool to conduct virtual meetings
Free
Free communication tool
Free
Call friends for free on any mobile device or PC
Free
Viber on your Mac Desktop
Free
Free and encrypted messaging app
Free
Free chat service for Mac
Free
A free social application
Free
Chat with your friends on the internet
Free
Official Twitter client for Mac
Free
Add iChat style special effects to your webcam
Free
Free text and video messaging tool from Facebook
Free
Unique 3D IM client with avatars
Free
Chat with friends worldwide for free
Free
Productivity and style with Slack
Free
MSN Messenger for Mac OS X 10.2.8 to 10.3.9