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 Twist or Bitrix24?
Both competitors offer free versions and add-ons, as well as roles and contact management, chat, and file sharing. Bitrix24 has more features like 1-1 and group video calls, recording, and document editing, while Twist has features like mentions, threads, and breakout rooms. Both competitors have mobile, web, and desktop apps, integrations and APIs, and SAML/SSO authentication, but only Bitrix24 offers on-premise deployment, end-to-end encryption, and two-factor authentication.