Mac Apps for Communications
Top 3 Communications Apps for Mac
More Communications Apps for Mac

AOL Desktop for Mac
FreeAll-in-one AOL client with integrated mail, AIM, browser.
MacWhatsapp
FreeWhatsapp for Mac: Populer messaging app on your Mac device
MacDesktop Facebook
FreeEfficient Desktop Facebook Chat for Mac Users
Mac
WhatsApp
FreeWhatsApp app on your Mac
MacX (Twitter)
FreeMacSnap Camera
FreeMac
Colloquy
Trial versionQuality IRC & SILC client with style.
MacApple Messages
FreeDownload Messages Beta and get a taste of what's coming in OS X Mountain Lion. When you install Messages, it replaces iChat. But iChat services will continue to work.
Mac
Mozilla Thunderbird
FreeTake advantage of best-adapted, highly customizable, lightning-fast, safely secured, and private email experience.
MacZoom Workplace
FreeMacWeChat
FreeMacTwitch
FreeMac
Telegram
FreeChat in private and group chats, share photos and videos and stay connected with everyone at once.
MacTelegram
FreeMacYahoo Messenger
FreeDiscontinued but popular messaging service by Yahoo
MacMegafon
FreeInternet phone with clear voice quality
Mac
EmailPro for Gmail
PaidGmail desktop client with notification support and menu bar item.
MacPodcast Monkey
Trial versionSend podcasts easily using drag and drop.
MacEudora
Trial versionE-mail client.
Mac
EOS Webcam Utility
FreeTurn your compatible Canon camera into a high-quality Webcam.
MacTextNow - Free Text
FreeMacX Lite
Trial versionMake phone calls from your computer.
MacFacebook Desktop
FreeMac
Viber
FreeSend free messages and make free calls to other Viber users, on any device and network, in any country.
Mac