Flock

Flock is a team collaboration service organized around channels, guest access, and messaging. It runs on the web, Windows, macOS, Linux, iOS, Android, and a Chrome extension, with API support listed. Integrations include Google Drive, Google Calendar, GitHub, Trello, Dropbox, Twitter, Bitbucket, Asana, Jira, Zapier, Zoom, Microsoft Dynamics 365, Todoist, GitLab, Zendesk, Freshdesk, OneDrive, and Mailchimp. The free plan is described for 1–20 members, with 10 public channels, 10,000 searchable messages, 5 GB total storage, and one team admin; message history is limited. Pro covers 20–100 members, 10 GB storage per team member, and video calls for up to 20 participants. Enterprise is for 100+ members, with 20 GB storage per member and 99.9% uptime. Pricing starts at $4.50/user/mo (annual), with a 30-day trial.

Flock offers broad platform coverage and extensive integrations for team communication. The free plan is structured for smaller teams, while higher tiers add storage, video capacity, and uptime terms.

Flock suits teams wanting channels, guest access, cross-platform clients, and many listed integrations. Its plan details also address small, mid-sized, and larger teams.