Knock

Customer messaging infrastructure across email, SMS, push, and chat

PlatformWebsubscriptionglobal

Knock connects directly to a product's live and warehouse data to orchestrate personalized customer messaging across email, SMS, push, chat, and in-app, with a visual editor for non-developers and full SDK control for engineers. It is aimed at product-led teams that want reliable, data-driven messaging without building and maintaining brittle custom notification systems.

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Full match profile

Behind the summary, Matchbox keeps a richer profile of Knock - the signals our matcher actually reads to decide when to surface it. It stays private; claim the listing to see and control it.

Problem & pain-point mapping
Who we surface it to (audience fit)
What it's a strong alternative to
Trust & credibility signals

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