
1. Slack
Best for integration-heavy software teams
What it does better than Flock
Slack is far more actively developed than Flock and offers the largest app directory in team chat, plus mature huddles, Workflow Builder automation, and best-in-class search. Nearly every SaaS vendor ships a Slack integration.
Where Flock still wins
Slack costs more per user than Flock and its free plan caps message history at 90 days.
Best for: Teams that rely on a broad stack of integrated SaaS tools.


