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 Google Workspace or Lark?
Both competitors offer chat, file sharing, voice messages, groups/channels, GIFs and emoji, 1-1 video calls, group video calls, screen sharing, audio calls, breakout rooms, recording, participant permissions, subtitles and translations, online document editing, document viewer, documents management, multiple workspaces, branding removal, user profile, integrations and API, SAML/SSO authentication, end-to-end encryption, and two-factor authentication. However, Google Workspace offers graphic personalization, custom domain name, workspace and user activity, mentions, whiteboarding, and "Do not disturb" mode, while Lark offers threads, newsfeed, notes-taking, calendar, task management, training webinars, dedicated CSM, and users import.