There is a 3rd alternative...
Atolia, the one and only workspace your team needs
Atolia is a power-packed all-in-one digital workplace: Chat, Video calls, Tasks & Projects, Calendars, Documents, Notes...
Accelerate your team's collaboration game.
Implement it in minutes and save money. Atolia is cheaper than most of the business instant messaging apps.
Why choose Slack or Monday?
However, Slack stands out with its chat, file sharing, mentions, voice messages, polls, groups/channels, GIFs and emoji, threads, 1-1 and group video calls, and screen sharing, while Monday focuses more on task management, online document editing, and document management. Slack also offers features such as recording, subtitles and translations, and an AI integration, while Monday has a newsfeed, notes-taking, and calendar. Both offer training, help resources, and mobile, web, and desktop apps, as well as integrations and API, SAML/SSO authentication, two-factor authentication, and data and user importing.