Slack vs Zoom
Head-to-head Churn Signal Index comparison. Higher index means more churn signals in public data.
Verdict
Zoom has a lower Churn Signal Index (44) than Slack (52), a difference of 8 points. Zoom has a modest public-signal edge, but both are within the same overall tier.
Slack signals
- Aug 2025 killed $10 AI add-on, forced migration to Business+ at $15/user
- Sept 2025 Hack Club 40x pricing incident (reversed after backlash)
- Business+ price $12.50 to $15/user, new Enterprise+ tier introduced
- Forced Agentforce bundling surfaces AI in workflows users didn't opt into
Zoom signals
- Post-COVID growth plateau visible in user engagement
- Microsoft Teams bundling competition at enterprise level
- Free-tier meeting limits (40 minutes) drive users to alternatives
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