Flock

Flock is a team collaboration service with channels, guest access, messaging, and integrations. It runs on the web, Windows, macOS, Linux, iOS, and Android, and is also available as a Chrome extension with API support. Listed integrations include Google Drive and Calendar, GitHub, Trello, Dropbox, Twitter, Bitbucket, Asana, Jira, Zapier, Zoom, Microsoft Dynamics 365, Todoist, GitLab, Zendesk, Freshdesk, OneDrive, and Mailchimp. The free plan has limited message history. Its Starter plan covers 1–20 members, 10,000 searchable messages, 10 public channels, 5 GB total storage, and one team admin. Pro is described for 20–100 members with 10 GB storage per team member and video calls for up to 20 participants. Enterprise is for 100+ members, with 20 GB storage per team member and 99.9% uptime. Pricing lists a free plan, paid plans from $4.50/user/mo (annual), and a 30-day trial. Named plan prices are not provided.

Flock suits teams that need channel-based collaboration across desktop, mobile, web, and browser-extension platforms. Its plan descriptions cover small teams through organisations of 100 or more members.