Skype
Freemium
Skype is an instant messaging and VOIP (Voice Over Internet Protocol) client to communicate with people in a distant place.
Hangouts
Free
Hangouts is an instant messaging software developed by Google.
WhatsApp Messenger
Free
WhatsApp Messenger is an instant messaging platform owned by Facebook.
Adium
Open Source
Adium is an Open source multi-protocol instant messaging client for Mac OS X, supports MSN, Jabber, Yahoo! and other networks.
Tox
Open Source
Tox is a peer-to-peer instant-messaging and video-calling protocol that offers end-to-end encryption.
Viber
Freemium
Viber Free Messenger and Phone Calls.
Signal
Open Source
Signal is the most scalable encryption tool.
Imo
Free
Imo free video calls and chat is a kind of Communication apps for Android.
Empathy
Open Source
Empathy is an instant messaging (IM) and voice over IP (VoIP) client which supports text, voice, video, file transfers, and inter-application communication ov…
IM+
Freemium
IM+ supports simultaneously major IM services, including Google Talk, Twitter DMs, Yahoo!, AIM/iChat, ICQ, Jabber (and Slack through Jabber), etc.
RetroShare
Open Source
RetroShare is open source software for encrypted filesharing, serverless email, instant messaging, online chat, and BBS, based on a friend-to-friend network b…
Wire
Free
Wire is a cross-platform, encrypted instant messaging client created by Wire Swiss. It is available for iOS, Android, Linux, Windows, macOS and Web browser cl…
Ring
Open Source
Ring (SFLphone) is an open-source SIP-compatible softphone and instant messenger for Linux, Microsoft Windows, OS X and Android.
FaceTime
Freemium
FaceTime is a proprietary videotelephony product developed by Apple Inc. FaceTime Audio is an audio-only version.
Rocket.Chat
Open Source
Rocket.Chat free open source chat solution.
Kik
Free
Kik Messenger is an instant messenger software.
Xabber
Open Source
Xabber (XMPP and Jabber) is a XMPP client for the Android Operating System.
Bitmessage
Open Source
Bitmessage is a decentralized, encrypted, peer-to-peer, trustless communications protocol that can be used by one person to send encrypted messages to another…
Let's Chat
Open Source
Let's Chat is a persistent messaging application that runs on Node.js and MongoDB. It's designed to be easily deployable and fits well with small, intimate te…
KakaoTalk
Freemium
KakaoTalk (Korean: 카카오톡), or sometimes KaTalk, is a free mobile instant messaging application for smartphones with free text and free call features.
Conversations
Freemium
Conversations is an open source XMPP/Jabber client for the Android platform.
Flock
Freemium
Flock is a communication app for teams. Packed with tons of productivity features, Flock drives efficiency and boosts speed of execution.
Google Duo
Free
Google Duo is a video chat mobile app available on the Android and iOS operating systems.
Jitsi Meet
Open Source
Jitsi Meet is an open-source (Apache) WebRTC JavaScript application that uses Jitsi Videobridge to provide high quality, scalable video conferences.
GroupMe
Free Personal
GroupMe is a mobile group messaging app.
Pidgin
Open Source
Pidgin is a free and open-source chat client which supports AIM, Google Talk, ICQ, XMPP protocols.
Telegram
Free
Telegram is a free cloud-based instant messaging platform.
Slack
Freemium
Slack is a cloud-based team collaboration tool.
Mumble
Open Source
Mumble is an open source, low-latency, high quality voice chat software primarily intended for use while gaming.
Trillian
Freemium
Trillian is a proprietary multiprotocol instant messaging application.
Discord
Free
Discord is a freeware proprietary VoIP application designed for gaming communities.
Jitsi
Open Source
Jitsi (formerly SIP Communicator) is a free and open source multiplatform voice (VoIP), videoconferencing and instant messaging application.
Facebook Messenger
Free
Facebook Messenger is the official Facebook app that lets you have text conversations with all of your friends on the popular social network.
TeamSpeak
Freemium
TeamSpeak is software for quality voice communication via the Internet.
LINE
Freemium
LINE is a new communication app which allows you to make free voice calls and send free messages whenever and wherever you are.
Mattermost
Open Source
Mattermost is an open source, private cloud Slack-alternative, Workplace messaging for web, PCs and phones. MIT-licensed.
Kopete
Open Source
Kopete is a multi-protocol, free software instant messaging client released as part of the KDE Software Compilation. Although it can run in numerous environme…
ICQ
Free
ICQ is an open source instant messaging software.
WeChat
Freemium
WeChat is a social media with instant messaging, commerce and payment services application.
ChatSecure
Open Source
ChatSecure is a messaging application for iOS which allows OTR and OMEMO encryption for the XMPP protocol.
Off-the-Record Messaging
Open Source
Off-the-Record Messaging (OTR) is a cryptographic protocol that provides encryption for instant messaging conversations.
Threema
Commercial
Threema is an encrypted instant messaging application for iOS, Android and Windows Phone.
Matrix.org
Open Source
Matrix is an open protocol for real-time communication. It is designed to allow users with accounts at one communications service provider to communicate with…
Torchat
Open Source
TorChat is a decentralized anonymous instant messenger that uses Tor hidden services as its underlying network. It provides cryptographically secure text mess…
BlackBerry Messenger
Freemium
BlackBerry Messenger, also known as BBM is an instant messenger and videotelephony application included on BlackBerry devices that allows messaging and voice …
TribeScale
Free
TribeScale is an All-in-One platform to coordinate your team around what really matters - communication, goals, decisions, tasks and results.
Grape
Commercial
Grape is an REST-like API framework for Ruby. It's designed to run on Rack or complement existing web application frameworks such as Rails and Sinatra by prov…
Tencent QQ
Free
Tencent QQ (QQ) is an instant messaging software service.
Bit Chat
Open Source
Bit Chat is a secure, peer-to-peer, open source instant messenger with end-to-end encryption.
Zulip
Open Source
Zulip is a chat and collaborative software.
Compare Riot.im with alternatives
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