Group Chat Apps Page 5 of 14

Instant messaging and group collaboration tool with thread-based channels, real-time document editing, Google Workspace integration, search, and enterprise security.

Mostlymatter is a fork of Mattermost meant to remove the users and messages limits. Mattermost is an open source platform for secure collaboration across the entire software development lifecycle.

Samepage facilitates communication, project management, meetings, online collaboration and more by combining chat, video calling, screen sharing, task management, file sharing, and real-time document collaboration in a single collaborative workspace.

Kahla is a free and open-source, cross-platform business messaging tool that supports end-to-end encrypted message communication and automatic destruction of messages.

Collaborative email and threaded group chat for productive teams. A single app for all your internal and external communication.

Lifesize Go gives you instant access to your own high-quality free video meeting space. Host meetings with up to eight participants from your phone or laptop without needing to download an application or install updates.

Peer-to-Peer Chat. Video & Text. Private & Encrypted. Unparalleled Quality.

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Clubhouse is a space for casual, drop-in audio conversations—with friends and other interesting people around the world.

Free Video Chat Rooms for teens, adults, family, and friends.

Secure, self-hosted messenger with private and group chat rooms, voice and video meetings, screen sharing, flexible permissions, and issue tracking.

Decentralized messaging client for Android, Linux and macOS allowing you to communicate with people or LXMF-compatible systems over Reticulum networks using LoRa, Packet Radio, WiFi, I2P, or any other medium Reticulum supports.

Ventrilo is a real-time voice chat software for group communications with surround sound support.

A messaging platform with integrated task management, Zenchat allows users to convert messages into tasks, supporting group chats and enterprise features.

A tiny self-hosted federated messenger for the decentralized web.

Skred is the first secure peer-to-peer instant messaging app - No need for an email address or phone number to use it.

Skred is free, without subscription, without a provider, without a SIM card, and without leaving a trace.

Monal is an open source iOS and macOS XMPP Chat-Client. It can connect to any standard XMPP chat server such as Gtalk or Facebook chat.

Spark is an Open Source, cross-platform IM client optimized for businesses and organizations. It features built-in support for group chat, telephony integration, and strong security. It also offers a great end-user experience with features like in-line spell checking, group chat...

An encrypted instant messaging with video call and GPS features for android.

WhatsApp Business enables you to have a business presence on WhatsApp, communicate more efficiently with your customers, and help you grow your business.

SquidHub is a simple, fun and flexible way to collaborate with friends, family and co-workers. Get a great overview and say goodbye to stress.

SmarterMail is the only other email server on the market with native support for MAPI, the protocol that powers Exchange and Outlook. That means anything you can do on Exchange you can do with SmarterMail: no plug-ins and no additional software required.

Prose is a distributed, open-source, and native platform for workplace communication.

FortKnoxster is a multidevice easy-to-use private and secure messaging, calling, crypto wallet and cloud storage, using advanced end-to-end encryption and leveraging on blockchain technology.

Open Source Android XMPP Client.