Protonet SOUL is described as 'Extendable cloud-based team communication and business collaboration app that you can easily host on your own Private Cloud Server if you want. Also available on iOS and Android devices' and is an app in the Office & Productivity category. There are more than 50 alternatives to Protonet SOUL for a variety of platforms, including Online / Web-based, Android, iPhone, Windows and Mac. The best alternative is Slack, which is free. Other great apps like Protonet SOUL are Mattermost (Freemium, Open Source), Rocket.Chat (Freemium, Open Source), Zulip (Free Personal, Open Source) and Microsoft Teams (Freemium).
Slack is a unified communication platform built with an optimized workflow to keep modern teams focused and productive. A familiar chat interface facilitates discussions while advanced features are easily exposed based on context.
Gitter is a chat and collaboration tool for developers and users. It's a place for developers to talk. KEY FEATURES - Unlimited public chat rooms for free - Unlimited and searchable chat history - Unlimited integrations - Private chat rooms free up to 25 users
Corteza Messaging is a secure, high performance, open source Slack alternative that allows your teams to collaborate more efficiently, as well as communicate safely with other organisations or customers.