Knock (knock-ai.com) sells itself as a replacement for the B2B demo form: instead of asking a website visitor to fill out a gated form and wait for a rep to follow up, Knock identifies who's browsing, scores their intent, and opens an instant conversation on Slack, WhatsApp, LinkedIn, or Telegram. This review covers what's actually inside the product, what it costs, and where the evidence is thin.
| Best for | B2B teams with real inbound website traffic who want to replace demo forms with live chat |
| Starting price | $1,000/month (Pipeline Foundation), advertised for 1,000+ activated contacts |
| Real cost | Roughly $1 per activated contact at both published tiers; Enterprise is quote-only |
| Setup speed | No public self-serve timeline; onboarding at this price point is sales-assisted |
| Standout feature | Routes qualified visitors into live Slack or WhatsApp conversations instead of a form queue |
| Biggest caveat | Entry pricing starts at four figures a month, and independent review volume is thin |
| Third-party rating | 4.9/5 on G2, but from only around 16-18 reviews — directional, not statistically solid |
Knock is a B2B buyer-engagement platform built around de-anonymizing website traffic and converting it into real-time conversations rather than form submissions. Under the hood it bundles jobs that are often sold as separate products elsewhere: visitor identification and enrichment (Knock Reveal, Knock Enrich), intent scoring (Knock Intent and Score), conversational engagement across Slack, WhatsApp, LinkedIn, and Telegram (Knock Chat), and an AI agent that qualifies leads and books meetings directly (Knock AI Agent). Knock Organic markets a form-free capture flow for pricing pages and gated content, and Knock Routing pushes qualified leads into the CRM automatically.
The vendor's site lists customers including Notion, Optimove, Veho, Descope, Fireblocks, and LSports, and cites case-study results such as a 75% reduction in lead-to-SQL time (Cyera) and a 38% pipeline increase within 90 days (Rivery). These are vendor-published figures tied to named customers, not independently audited numbers, so treat them as directional evidence rather than a guaranteed outcome for your own funnel.
Knock sits on top of your existing website and marketing pages. Once a visitor is identified and scored as high-intent, Knock either routes the conversation into your team's Slack for internal handoff or opens a channel directly with the visitor on WhatsApp, LinkedIn, or a chat widget. The AI agent can run qualification questions and book meetings without a rep in the loop, syncing everything back to the CRM. The vendor advertises a two-month trial window following initial setup, which points to a sales-assisted onboarding rather than a self-serve signup — there's no public sign-up-and-go flow of the kind you'd see with a cold-email tool.
| Plan | Monthly price | Contacts included | De-anonymization credits |
|---|---|---|---|
| Pipeline Foundation | $1,000 | 1,000+ activated contacts | Up to 10,000 |
| Pipeline Acceleration | $3,000 | 3,000+ activated contacts | Up to 30,000 |
| Enterprise Pipeline | Custom (quote only) | 10,000+ activated contacts | Unlimited |
Worth flagging: Knock's own pricing page displayed inconsistent figures for the middle tier during our research (some sections showed $1,500-$2,000 alongside the $3,000 headline number), so confirm the current figure with sales before budgeting. At the advertised numbers, both published tiers work out to roughly $1 per activated contact per month; Enterprise pricing isn't published, so there's no way to verify whether that ratio holds at scale. All tiers include SOC 2 Type II and GDPR support; SSO, SCIM, and IP allowlisting are Enterprise-only.
Knock holds a 4.9-star rating on G2 from roughly 16-18 reviews as of this writing — a strong score, but a review base small enough that a handful of accounts can move it meaningfully, not large enough to draw firm conclusions about the typical customer experience. We looked for Reddit discussion (r/sales, r/B2Bmarketing and similar) and Trustpilot coverage specific to knock-ai.com and found none with usable volume. Worth noting: "Knock" is also the name of an unrelated home-buying company with its own large Trustpilot presence — that data belongs to a different business entirely and we've excluded it here. Net: a respectable but small G2 signal, vendor-published case studies with real customer names attached, and no independent negative-sentiment data we could verify one way or the other. We're not treating that silence as a clean bill of health, just reporting what does and doesn't exist.
Pros
Cons
Knock competes in the visitor-identification-plus-conversational-engagement category, which overlaps with account-based marketing chat tools and intent platforms more than with cold-email sequencers:
Good fit: B2B companies with real inbound website traffic (pricing pages, gated content, product-led motions) who want to shortcut the demo-form-to-SQL lag and have budget for a four-figure-a-month tool plus a sales-assisted rollout.
Poor fit: early-stage companies without meaningful site traffic to de-anonymize, teams that want a self-serve signup with no sales call, or anyone whose growth channel is outbound cold email rather than inbound website visitors — Knock doesn't compete in that space.
$1,000 / month
$3,000 / month
Custom / month