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At a glanceKnock ↗

Build customer messaging around product events.

Best suited forProduct and engineering teams building event-driven customer communication.
Access modelFreemium
What it does
  • Cross-channel messaging
  • Notification workflows
  • Preference controls
ConsiderationsReview channel provider costs, data access and plan limits. Consent, unsubscribe behavior and preference management still need deliberate configuration.
SourceOfficial website ↗
Current plansCheck current pricing ↗
Listing reviewedOct 19, 2026

Compare products serving a similar need. This table summarizes listing information; it is not a hands-on benchmark or a rating.