Comparison
RB2B vs Warmly
Updated October 13, 2026 · Knock2
Both name the people visiting your website. RB2B is a monthly identification tool from $79. Warmly is a quarterly or annual platform from $10,000 a year, built around AI chat. Here is what each publishes about itself, and a third option.
The short version
Which one fits you.
Choose RB2B if
- You want to try person-level identification for under $200 a month.
- A LinkedIn profile in Slack is enough, or you will pay for Pro to get emails and CRM sync.
- Coverage of 15-45% of your US visitors is acceptable.
Choose Warmly if
- You want AI chat and AI agents talking to visitors on your site.
- You have $10,000 to $30,000 or more a year for it, on a quarterly or annual contract.
- You want chat, identification and on-site personalization from one vendor.
Or look at Knock2 if
- You want more of the people than either publishes: 62% of US engaged sessions.
- Your reps do the outreach, so you want the buying committee and a route into the CRM.
- You want it month-to-month from $199, with work emails on every plan.
Side by side
RB2B vs Warmly, in their own numbers.
RB2B figures are from its pricing and integrations pages (October 8, 2026); Warmly's from its pricing page and help center (October 9 and 12, 2026).
Swipe sideways to see every column →
| RB2B | Warmly | Knock2 | |
|---|---|---|---|
| People identified | 15-20% of US visitors on Starter and Pro, 35-45% on Pro+ | Around 45% of contacts, 50%+ with its UTM parameter; base not stated | 62% of US engaged sessions, every plan |
| Companies identified | 15-20% on Free, Starter and Pro, 35-45% on Pro+ | Around 60%; base not stated | 93% of engaged sessions, globally |
| Entry price | Free (150 resolutions, company only); Starter $79/mo | $10,000/yr, or $4,875 a quarter | $199/mo |
| Billing | Monthly | Quarterly or annual; no monthly plan listed | Monthly, cancel any time |
| Trial | 7-day trial | Not listed | 7-day free trial |
| Work emails | From Pro ($149/mo); Starter gives LinkedIn URLs, no emails | Its help center says 40% of contacts only have a personal email | Every plan |
| AI chat on your site | Not listed | Inbound Chat from $20,000/yr; AI Inbound Autopilot from $30,000/yr | No. Reps do the outreach. |
| CRM and sequencers | Slack on every plan; HubSpot, Salesforce, Instantly, Smartlead, HeyReach and Clay on Pro and Pro+ | CRM, Slack and sequencers on every plan | HubSpot, Salesforce, Slack, Apollo, Outreach, Lemlist, Instantly and more, every plan |
| Rest of the buying committee | Not listed | Not listed | Every plan, with verified emails |
Reading the match rates
Same words, different bases.
RB2B prints coverage bands on its pricing page: 15-20% of US visitors on Starter and Pro, 35-45% on Pro+. Warmly’s help center says around 45% of contacts and around 60% of companies, without saying which visits those are measured against. Knock2 measures against engaged sessions: 62% to the person on US traffic, 93% to the company everywhere.
None of those three bases is the same, so no single number settles it. The fair test is your own site: run two tools on the same traffic for a week and count named people with a work email.
More tools: Knock2 vs Warmly · the 2026 comparison
FAQ
Frequently asked questions
Is RB2B cheaper than Warmly?
Yes, on published prices. RB2B's pricing page, checked October 8, 2026, has a free company-only plan, Starter at $79 a month and Pro from $149, billed monthly. Warmly's pricing page, checked October 9, 2026, starts at $10,000 a year or $4,875 a quarter, with AI chat from $20,000 a year and no monthly plan.
Does RB2B or Warmly identify more visitors?
They publish on different bases, so the numbers do not line up. RB2B lists coverage of 15-20% of US visitors on Starter and Pro and 35-45% on Pro+. Warmly's help center says around 45% of contacts and around 60% of companies, without stating the denominator. The fair comparison is both tools on your own traffic for a week, counting named people with a work email.
Does RB2B have AI chat like Warmly?
RB2B does not list a chat product. Warmly sells AI chat as Inbound Chat from $20,000 a year and AI Inbound Autopilot from $30,000 a year. If you want AI talking to visitors, that is Warmly's product; if your reps do the outreach, neither chat plan is needed.
Is there an alternative to both RB2B and Warmly?
Knock2 identifies the person on 62% of US engaged sessions and the company on 93% of engaged sessions, with work emails, the rest of the buying committee and routing into your CRM and sequencers on every plan. It is month-to-month from $199, with a 7-day free trial. See Knock2 vs RB2B and Knock2 vs Warmly.
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