WhatsApp for PC is a cross-platform mobile messaging app which allows you to exchange messages without having to pay for SMS.
All-in-one voice and text chat for gamers that's free, secure, and works on both your desktop and phone.
Call or send instant messages. Google Talk has been replaced by Google Hangouts as an add-on for the Chrome browser, but it's still available here for download.
Use your smartphone as a wireless webcam for your PC or Mac with Iriun, no configuration needed!
Free calls, text and picture sharing with anyone, anywhere!
AresGalaxy is a Filesharing Bittorrent P2P client that works even behind firewalls.
Send text messages, voice messages, videos, documents, pictures or group messages and make free phone calls over an end-to-end encrypted connection to keep your communication absolutely safe.