YakYak is a desktop chat client for Google Hangouts. ...more

Google Allo is an instant messaging mobile app. ...more

Ricochet uses the Tor network to reach your contacts without relying on messaging servers. ...more

Wickr is an instant messenger application. ...more

Bit Chat is a secure, peer-to-peer, open source instant messenger with end-to-end encryption. ...more

Sicher is a freeware instant messaging application for iOS, Android, and Windows Phone. Sicher allows users to exchange end-to-end encrypted text messages, media files and documents in both private and group chats. ...more

BlackBerry Messenger, also known as BBM is an instant messenger and videotelephony application included on BlackBerry devices that allows messaging and voice calls between BlackBerry, iOS, Android, and Windows Mobile users. ...more

WeeChat is a free and open-source Internet Relay Chat client, which is designed to be light and fast. ...more

KakaoTalk (Korean: 카카오톡), or sometimes KaTalk, is a free mobile instant messaging application for smartphones with free text and free call features. ...more

iMessage is an instant messaging service. ...more

Apache Spark is an open-source cluster-computing framework. ...more

Kik Messenger is an instant messenger software. ...more

WeChat is a social media with instant messaging, commerce and payment services application. ...more

Smuxi is a cross-platform IRC client for the GNOME desktop inspired by Irssi. ...more

Imo free video calls and chat is a kind of Communication apps for Android. ...more

Jitsi (formerly SIP Communicator) is a free and open source multiplatform voice (VoIP), videoconferencing and instant messaging application. ...more

Signal is the most scalable encryption tool. ...more

Tox is a peer-to-peer instant-messaging and video-calling protocol that offers end-to-end encryption. ...more

Telegram is a free cloud-based instant messaging platform. ...more

Threema is an encrypted instant messaging application for iOS, Android and Windows Phone. ...more