Skype

Unison gives you secure "rooms", team spaces where you can post updates or files, get feedback and talk live as a group. Unison works from your smartphone, tablet, or computer. …

Instant messaging & Group Chat built for business. Features include: - Private Group Chat - Instant Messaging (one-on-one) - Persistent Searchable Chat History for Room & IM - Video Chat …

Yahoo! Messenger is an instant messaging client developed by Yahoo! inc. for real-time communication of its users. It provides text chat, file transfer up to 2GB. conversations with audio and …

KakaoTalk is a phone number based messenger service that allows users anywhere in the world to chat one-to-one or in a group for free. (no SMS service) Message arrivals are …

Psi+ is a development branch of Psi IM XMPP/Jabber client. Psi is a cross-platform powerful XMPP/Jabber client (Qt, C++) designed for the Jabber power users.

Zen Talk is a web-based application for instant messaging. -1267 times lighter than Facebook. -319 times lighter than Facebook Mobile. -686 times lighter than Meebo. -Lightning-fast chat. -No adds. -Save …

Discord — проприетарный бесплатный мессенджер с поддержкой VoIP, видеоконференций, предназначенный для использования различными сообществами по интересам, наиболее популярен у геймеров и учащихся. Разработчик — компания Hammer & Chisel из Сан-Франциско.

VoxOx is the first ever Universal Communicator Service that manages all forms of cross-media communication for consumers. Signup *requires* user provide SMS capable mobile number. It is the only service …

MXit is a free, cheap to use, instant messenger for almost every phone on the earth. From chatrooms, games and shopping to movie clips, music and sport - this is …

Meow is a new way to chat and explore the world instantly!

Portuguese messenger publish by SAPO. It has a sending SMS feature and the user can make audio-visual calls. GTalk can be integrated with this instant messaging program.

MSN (Windows Live) Messenger for Android.