Knock2 vs Warmly: Which Visitor ID Tool Fits Your Team?

Knock2 and Warmly both tell you who is on your website, but they are built for different teams. Warmly is an annual-contract inbound platform built around AI chat and AI agents that talk to your visitors. Knock2 is a month-to-month identification and outbound platform: it names the people on your site, finds the rest of their buying committee, and routes them into the CRM, Slack and sequencing tools your reps already use.

If your plan is to let AI agents handle inbound conversations on your site, look hard at Warmly. If your plan is to have reps reach the right people fast, start with Knock2. Here is the side-by-side, using each company's own published numbers as of September 2026.

What does each tool cost?

This is the biggest practical difference, so it comes first.

• Knock2 - from $199 a month, month-to-month by default, cancel anytime from the dashboard. Five plans from $199 to $999 a month, sized by how many contacts you want identified (600 to 7,500 a month). Every plan includes the full platform, and there is a 7-day free trial. Annual billing is optional and discounted. See Knock2 pricing.
• Warmly - from $10,000 a year for its AI Web-Deanonymization plan, billed annually, or $4,875 a quarter. Its Inbound Chat plan is $20,000 a year and its AI Inbound Autopilot plan is $30,000 a year. Warmly's pricing page lists no monthly option ("Pay quarterly to try, switch to annual to save"), and add-ons such as its GTM Signals package are $10,000 a year each. Source: Warmly pricing.

For a team testing visitor identification for the first time, that gap matters. With Knock2 you can find out whether identified visitors turn into pipeline for a few hundred dollars and one month. The smallest Warmly commitment is a quarter at $4,875.

How many of your visitors will each tool identify?

Knock2 publishes two numbers, both measured against engaged sessions:

• 93%* of engaged sessions identified at the account (company) level.
• 62%* of engaged sessions identified at the person level (name, email, title), US traffic only.

Warmly's help center describes a company identification rate of "around 60%" and a contact identification rate of "around 45%", rising to "50%+" when customers use Warmly's UTM parameter. It does not state which visits those rates are measured against, and it notes that "60% of contacts have a business email or company name associated with them while 40% of contacts only have a personal email." Source: Warmly's data overview.

Two things to take from that. First, match rates are only comparable when they share a denominator, so the fairest test is to run both tools on your own traffic for two weeks; our vendor pilot playbook walks through how. Second, check what kind of contact you get. A personal email is hard for a rep to use in outbound, so ask any vendor what share of its person-level matches come with a business email and a current company.

Where does each tool fit in your workflow?

• 🔴 AI chat and AI agents on your website - Warmly's core strength. Its Inbound Chat and AI Inbound Autopilot plans add an AI chatbot, AI agents that qualify and respond to visitors, and AI-written follow-up. Knock2 does not put a chatbot on your site.
• 🔴 Getting identified people in front of reps - Knock2's core strength. Identified visitors go straight into HubSpot, Salesforce or Attio, into Slack or Microsoft Teams alerts, and into 20+ sales tools including Apollo, Outreach, Salesloft, Instantly, Smartlead, HeyReach, Amplemarket and Clay. See all integrations.
• 🟠 The rest of the buying committee - Knock2 includes buying committee discovery on every plan: when one person from an account visits, it surfaces the other decision-makers at that company so reps can multi-thread from the first touch.
• 🟠 Deciding who is worth a rep's time - Knock2 includes AI lead scoring against your ideal customer profile on every plan, so the Slack channel shows the accounts that matter rather than everything that moved. Warmly offers ICP filtering on its base plan.
• 🟡 Automations - Knock2 Plays let you set rules once (for example, "VP of Sales at a 50 to 300 person SaaS company viewed pricing twice this week") and route matches automatically. Warmly's higher tiers lean on AI agents to act for you instead.
• 🟡 Third-party intent data - Warmly sells a GTM Signals add-on covering intent, hiring, funding and competitive signals for $10,000 a year. Knock2 includes buyer signals on every plan.
• 🟢 Access for your own AI tools - Knock2 includes API and MCP access on every plan, so you can query your visitor data from Claude or your own agents.

Which one should you choose?

Choose Warmly if:

• You want AI chat and AI agents handling conversations with visitors on your site.
• You already have an annual budget in the $10,000 to $30,000+ range for this.
• You want identification, chat and personalized website experiences from one vendor.

Choose Knock2 if:

• Your reps do the outreach and you want them reaching the right people the same day they visit.
• You want person-level identification plus the rest of the buying committee, routed into the CRM and sequencing tools you already use.
• You want to prove it works month-to-month, starting at $199, before committing to anything annual.

The two are not mutually exclusive: some teams pair a website chat tool with Knock2 for identification and outbound. But if you are choosing one tool to turn anonymous traffic into pipeline, the question is simple: do you want AI to talk to your visitors, or do you want your reps talking to the right ones?

Start a 7-day free trial of Knock2 and see who is on your site this week, or compare Knock2 with other tools.

Frequently asked questions

Does Warmly have a free plan?

Warmly's pricing page lists no free plan or monthly option; its plans are billed quarterly or annually. Knock2 has a 7-day free trial and month-to-month plans from $199.

Does Warmly identify individual people or just companies?

Both. Warmly identifies companies and contacts, and its help center describes a contact identification rate of around 45%. Knock2 also identifies both, at 93%* account level and 62%* person level on US engaged sessions.

Is Knock2 a Warmly alternative?

Yes, for teams whose goal is outbound pipeline from website visitors rather than AI website chat. Knock2 covers identification, buying committee discovery, lead scoring and routing into 20+ sales tools, month-to-month.

*Identification rates measured against engaged sessions. Results may vary by traffic profile, geography, and industry. Warmly pricing and figures are taken from Warmly's public pricing page and help center as of September 2026 and may change.