Sid
Sid is a secure teamwork tool to make your team communication safer, simpler and more efficient.
Sid Alternatives
The best Sid alternatives based on verified products, community votes, reviews and other factors.
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Rocket.Chat is a Web Chat Server, developed in JavaScript, using the Meteor fullstack framework.
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A messaging app for teams who see through the Earth!
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The most intuitive platform to manage projects and teamwork
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handy and feature-rich enterprise multi-device messenger available for server or cloud – Slack-like, but not Slack-limited
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Stay in touch with your family and friends for free on Skype. Download Skype today to chat and call on desktop and mobile.
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Mattermost is an open source alternative to Slack.
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A desktop chat client for Discord and Slack
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Visual boards for organizing anything.
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Apply a dark theme to Slack for Mac ⚫️ ✨
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Microsoft Teams provides the enterprise-level security, compliance and management features you expect from Office 365, including broad support for compliance standards, and eDiscovery and legal hold for channels, chats, and files.
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A newly open sourced self hosted Slack like alternative for building persistent chat communities
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Modern team communication and collaboration
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A faster way for your team to communicate
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Async is a one-of-a-kind communication and project management tool for small teams of software engineers.