Spectrum Chat Alternatives

A messaging app for teams who see through the Earth!

handy and feature-rich enterprise multi-device messenger available for server or cloud – Slack-like, but not Slack-limited

VoIPstudio is an award-winning VoIP system that offers businesses of all sizes a scalable communication solution. It’s inexpensive, easy-to-use, offers a full suite of PBX features, and is fully integrated for CRM.

Try for free paid Free Trial $4.99 / Monthly (User)

Live life unlimited. Free video meetings and team messaging in one app that works the way you do.

A desktop chat client for Discord and Slack

Mattermost is an open source alternative to Slack.

Open Source

ScudCloud - Slack for Linux. Contribute to raelgc/scudcloud development by creating an account on GitHub.

Crugo is a simple group collaboration platform for your team

JUST SOCIAL provides all the collaboration tools like enterprise social network, real-time document collaboration

Software for running mastermind groups

Telegram is a messaging app with a focus on speed and security. It’s superfast, simple and free.

Open Source

Minsh is a mobile-first dedicated communication tool for teams

Step up your game with a modern voice & text chat app. Crystal clear voice, multiple server and channel support, mobile apps, and more.

Open Source

No need to switch between multiple pieces of software to get through the workday. CHATS: Communicate freely. CALENDAR: Know your team's availability, plan meetings. No more conflicts. TO-DOs: Stay on top of all projects. FILES: All files, one spot.