Apps similar to Mostlymatter include Jitsi Meet, which is free and open source. Other options are Slack, Mattermost, Zoom and Infomaniak kMeet. You can choose from more than 10 Group Chat Apps like Mostlymatter for Android, iPhone, iPad, the web and self-hosting.
Open-source video conferencing platform with encryption by default, up to 75 participants, live group chat, HD audio, screen and document sharing, Etherpad editing, mobile and browser support, custom deployment options, privacy-first features, and community-driven development.
United States
Offers unified communication for teams with advanced real-time messaging, contextual features, versatile chat tools, and organized conversations in dedicated channels with integrated file sharing on Mac, Windows, Linux, and mobile platforms for enhanced productivity.
United States
Self-hosted collaboration platform featuring chat, workflow automation, voice and video calling, screen sharing, AI capabilities, broad third-party integration support, cross-platform apps, compatibility with Slack imports, and flexible deployment options for secure team communication.
United States
Provides robust video meetings with up to 100 participants, screen sharing, real-time chat, cloud recording, whiteboard and document collaboration, AI-generated meeting summaries, seamless device switching, phone and messaging integration, and multitasking support.
United States
Encrypted video meetings with unlimited participants, screen sharing, recording with secure storage, no data sale or registration, chat, reactions, calendar and background features, hosted entirely in Switzerland on renewable energy and compliant with strict privacy laws.
Switzerland
Powered by WebRTC, Real-time video call, chat room and screen sharing entirely browser based.
Italy
EU
Self-hosted communication platform with secure audio, video, chat, web conferencing, screensharing, advanced encryption, and metadata privacy, running on user-controlled servers, supporting web and mobile apps, and eliminating third-party data exposure.
GermanyEU
Element Pro is a secure enterprise communication app built on the Matrix protocol, designed for organizations that need encrypted, compliant, and fully controlled collaboration. It combines real-time messaging, voice and video calls, and file sharing with strong administrative...
United Kingdom
HD video and audio meetings for up to 250 participants with real-time captions, international dial-in, screen and presentation sharing, secure browser-based access, calendar scheduling, chat messaging, file sharing, and adaptive video quality for remote teams.
United States
A comprehensive collaboration platform within Office 365, providing centralized chat, file sharing, and HD video meetings. Accessible on multiple platforms, it offers enterprise-grade security and compliance, customizable notifications, and private to group chat sessions.
United States
Nebulynk is a self-hosted team communication platform combining chat, persistent voice channels and voice/video meetings. It includes AI-powered meeting transcription, structured summaries and searchable follow-up through Ask the Meeting.
GermanyEU
