Jostle Alternatives for Mac OS X

Slack is a leading cloud-based platform designed for team communication and collaboration. It offers a central location for conversations, file sharing, and app integrations, enabling teams to work more efficiently and stay connected regardless of location.

Glip, by RingCentral, is a comprehensive team collaboration platform combining real-time messaging, video calls, task management, and file sharing into a single, searchable hub. Designed to streamline communication and workflow, it aims to replace disjointed tools with a unified digital workspace.

eXo Platform is an open-source enterprise social collaboration platform designed to connect employees, share knowledge, and improve communication and productivity within organizations. It offers a comprehensive suite of tools including social networking, document management, project management, and real-time communication features.

Bitrix24 is a comprehensive business management platform offering a robust suite of tools for CRM, project management, team collaboration, and communication. It caters to businesses of all sizes, with a free plan available for smaller teams, providing a centralized workspace to enhance productivity and streamline operations across various departments.

HumHub is a free and open-source social network software and framework designed to empower teams and businesses with a platform for effective collaboration and communication. It provides a centralized hub for projects, tasks, and social interaction within an organization.

TribeScale is an all-in-one platform designed to streamline team coordination, encompassing communication, goal management, task delegation, and progress tracking to enhance productivity and alignment within organizations.

Dialog Messenger is a robust, feature-rich enterprise messaging solution designed for businesses prioritizing security, privacy, and control. Available for both private server deployment and cloud hosting, it facilitates secure text, voice, and video communication across multiple devices, enabling seamless collaboration and real-time interaction within organizations.