Flock vs Slack: Pricing Comparison 2026

Flock and Slack are both team messaging platforms, but Flock bundles productivity features that Slack keeps separate. Flock Starter (free) supports up to 20 members with unlimited messages and channels. Pro at $6/user/month adds video conferencing, screen sharing, admin controls, and integrations. Slack Free limits to 90 days of message history. Pro at $8.75/user/month adds unlimited history, group calls, and 2,600+ integrations. Business+ at $12.50/user/month adds SSO and compliance. Flock's built-in features - to-do lists, shared notes, reminders, polls, and code snippet sharing - provide lightweight productivity tools inside the messaging interface. Teams that currently use Slack plus Trello for tasks and Google Keep for notes can consolidate into Flock. The per-seat savings of $2.75/user/month add up: a 50-person team saves $1,650/year. Slack's advantage is ecosystem depth. Automated workflows from GitHub, Jira, Datadog, Salesforce, and 2,600+ other tools create a communication hub that Flock's smaller integration library cannot match. Slack's threading model is also more sophisticated for managing complex discussions. For small teams wanting affordable messaging with built-in productivity tools, Flock is a practical alternative. For teams that depend on deep integrations and enterprise features, Slack's ecosystem justifies the premium.