Warmly vs RB2B: an honest comparison for cold outbound teams

RB2B's free plan resolves 150 website visitors a month; Warmly's cheapest plan costs $10,000 a year before you resolve one. Warmly is a website visitor identification and AI chat platform, but its annual-only contracts and enterprise-style buying process push most small teams away. The strongest visitor-ID picks for cold outbound teams in 2026 are RB2B for cheap monthly identification, Warmly for bundled AI chat, and Clearbit for teams already inside HubSpot.

By Rishabh Ambasta, Founder, Modern Inbound.

Warmly vs RB2B at a glance

Warmly and RB2B both unmask anonymous website visitors, but they sell to different budgets. Warmly bundles AI chat and outbound orchestration into annual contracts starting at $10,000 a year. RB2B strips the AI layer out and sells monthly self-serve seats from free up to $199 a month.

How much do Warmly and RB2B actually cost?

RB2B is cheaper by a wide margin: its free plan handles 150 monthly resolutions, and its priciest self-serve tier tops out at $199 a month. Warmly's cheapest plan starts at $10,000 a year, roughly $833 a month, and its top Autopilot tier runs $30,000 a year.

RB2B's free plan now returns company-level data only, not names or emails, per RB2B's pricing page. Person-level ID and business emails require the $149/mo Pro plan or higher. Warmly doesn't publish a monthly self-serve option at all; every plan is an annual or quarterly contract, and add-ons like the GTM Signals package run another $10,000 a year, per Warmly's pricing page. For agencies under 20 people, that gap rules Warmly out before features enter the conversation.

What do you actually get for the money?

RB2B does one thing: it names anonymous visitors and pushes them to Slack, HubSpot, or Salesforce. Warmly does that plus AI chat, meeting booking, and Bombora intent signals, wrapped into what it calls an Autopilot Agent that runs largely without a human touching the conversation.

That breadth is Warmly's real pitch: you're buying a chatbot that qualifies leads and books calls without a rep touching it, not just an ID feed. RB2B skips all of that and sticks to one job.

• Warmly: AI chat widget, meeting booking, and Bombora intent signals bundled into one Autopilot Agent.
• RB2B: a resolution engine that matches a LinkedIn profile and hands it to your existing outbound tool, per RB2B's product docs.

For teams sending 500+ cold emails a month who already own their outreach stack, RB2B's narrower scope is a feature, not a gap.

Who should choose Warmly, and who should choose RB2B?

Choose RB2B if you're a founder or a sales team under 20 people who wants visitor names in Slack without signing an annual contract. Choose Warmly if you've already got a $30,000+ GTM budget and want AI chat bundled with identification.

RB2B is the better buy for most cold outbound shops: person-level ID for less than a single SDR's daily rate, and you can cancel monthly. Warmly's pricing only makes sense once you're paying for the AI chat layer, not for identification alone. Buying it just to de-anonymize traffic means paying enterprise prices for a feature RB2B sells at $149 a month, per RB2B's pricing page.

FAQ

Is RB2B really free?

Yes, RB2B's free plan resolves up to 150 website visitors a month, but as of 2026 it returns company-level data only, not names, emails, or LinkedIn URLs, per RB2B's pricing page. Person-level identification requires a paid plan starting at $79/mo.

Does Warmly have a free trial?

Warmly does not offer a self-serve free tier. Plans start at $10,000/year for web de-anonymization alone, billed annually or quarterly, per Warmly's pricing page. Expect a sales call before you see a working demo.

Which tool gives you email addresses?

RB2B's Pro plan ($149/mo) and Pro+ plan ($199/mo) both include business email addresses. Warmly includes contact data across its paid tiers as part of visitor-ID and CRM sync, per each vendor's pricing page.

Can you use RB2B and Warmly together?

Nothing stops you from running both, but most teams don't need to. RB2B covers identification cheaply. Warmly adds AI chat and orchestration on top. Pick based on whether you need the chat layer, not brand loyalty.

If you'd rather skip the visitor-ID subscription entirely, Modern Inbound builds and runs done-for-you cold email and LinkedIn outbound instead of just naming who visited your site. See how the pay-per-lead model works at moderninbound.com/ppl.