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 Rocket.Chat?
Both platforms offer chat, file sharing, mentions, voice messages, and group channels, but Slack has additional features such as polls, custom domain names, and add-ons. On the other hand, Rocket.Chat offers more security features such as end-to-end encryption, two-factor authentication, and SAML/SSO authentication. Overall, Slack may be a better choice for businesses looking for more customization and add-ons, while Rocket.Chat may be a better option for businesses prioritizing security and encryption.