Comparison
RB2B vs Warmly: which one fits how you sell?
RB2B and Warmly both identify anonymous B2B website visitors, but they solve different problems. RB2B is a focused, US-only, person-level identifier that pushes profiles to Slack at a low entry price. Warmly is a broader revenue-orchestration platform — company and person identification plus automated outreach — at a materially higher price. Pick by workflow, not match-rate claims.
Lumitra sells visitor intelligence too. Treat this page like any vendor comparison — including ours — and check the cited sources.
The 30-second difference
Strip away the marketing and the two tools barely compete. One is an identification instrument; the other is an automation platform that happens to include identification. As one 2026 head-to-head put it:
“RB2B is a precision tool built around one job, while Warmly is a platform built around a workflow.”
— Spencer Parikh, Devcommx’s Warmly vs RB2B comparison (June 2026)
Pick RB2B when
You’re a small, US-focused team that wants person-level alerts in Slack at a low entry price — and you already run Clay- or Instantly-style tooling for the follow-up.
Pick Warmly when
You live in HubSpot or Salesforce, have five-figure budget, and want identification bundled with automated chat, email, and LinkedIn plays.
Pick neither when
Your CRM is where your team actually works — especially Close — and what you need is clean, deduplicated leads with visit context, not another alert channel.
The honest numbers
Both vendors advertise match rates; neither publishes audited ones. The most concrete independent figure comes from Prospeo’s 2026 head-to-head, which tested both tools:
“Expect 5–20% of sessions to resolve to an actual person under ideal conditions, and 50–80% to resolve at the company level.”
— Prospeo, RB2B vs Warmly (2026)
Three more facts worth having before a demo. First, geography: RB2B restricts person-level resolution to US traffic — a limitation Warmly’s own comparison content states plainly about RB2B. Warmly’s person-level coverage reaches beyond the US but is densest there, so validate it against your own regional traffic rather than assuming either extreme. Second, price: RB2B publishes its own — $0 for 150 company-level resolutions a month, $79 for LinkedIn URLs, $149 for person-level reveals with business emails — while the figures for Warmly come from third parties and disagree. Prospeo lists no Warmly free tier and roughly $15,000 a year to start; Devcommx reports a free tier and about $700 a month at scale. Ask Warmly for a written quote for your seat count. Third, buyer trust: one of the most-read discussions of this exact comparison is a Reddit thread asking whether either tool’s person-level claims hold up at all. The skepticism is earned — which is why the useful test is never the advertised percentage, it’s the number of usable leads that reach your CRM.
RB2B vs Warmly vs Lumitra
| Capability | RB2B | Warmly | Lumitra |
|---|---|---|---|
| Identification level | Person-level, US traffic only | Company-level + person-level, plus intent signals | Company-level led; person-level when visitors identify themselves, with earlier anonymous sessions linked retroactively |
| Geography | US only for person-level resolution (RB2B’s own stated limit) | Global company-level; person-level available beyond the US but densest there | Global company-level identification |
| Where identified visitors land | Slack alerts; webhooks and integrations on paid plans | HubSpot and Salesforce, plus built-in chat and sequences | Your CRM — Close, HubSpot, Salesforce — as deduplicated leads with visit timelines attached |
| Outreach & orchestration | None built in — pair with Clay, Instantly, or similar | AI chat, email, and LinkedIn plays out of the box | Event-driven GTM agents acting on visits, with optional human approval on every action |
| CRM hygiene | Depends entirely on the downstream stack you build | Deterministic matching; avoids overwriting populated fields (per its published integration docs) | Existence checks before every write, deduplication, and a full audit trail |
| Pricing posture | Published: $0 company-level tier (150 resolutions/mo), $79/mo Starter, $149/mo for person-level + emails (rb2b.com/pricing, Aug 2026) | Sales-led; third-party sources conflict on free-tier availability and entry price (2026) — get a written quote | Public pricing page, self-serve start |
| Beyond visitor ID | No — focus is the point | Intent data, chat, and sequences | Company intelligence + GTM agents working off CRM events |
Comparison based on each vendor’s published positioning and third-party head-to-heads, retrieved 20 July 2026: Prospeo, Devcommx, and Warmly’s own comparison page. Features and pricing change frequently; confirm on each vendor’s site.
The third path: visitor identification that lives in your CRM
If the RB2B-vs-Warmly debate feels like choosing between an alert firehose and an expensive platform, the thing you’re actually shopping for may be different: identified visitors arriving in your CRM as records your team can work. That’s what Lumitra is built for. Visitor Intelligence stitches anonymous sessions into per-visitor timelines and leads with company-level identification — the level that holds up globally. When a visitor identifies themselves, their earlier anonymous sessions are linked retroactively. Every identified company can be enriched with Company Intelligence and written to Close, HubSpot, or Salesforce with existence checks, deduplication, and an audit trail — see the Close CRM integration. And instead of generic sequences, high-intent visits can trigger GTM Agents with optional human approval on every action. Pricing is public on the pricing page.
Frequently asked questions
Is RB2B or Warmly more accurate?
Neither vendor publishes independently audited accuracy, so treat every “up to X%” figure as marketing. Third-party testing published by Prospeo in 2026 found 5–20% of sessions resolving to an actual person under ideal conditions, with 50–80% resolving at the company level. Accuracy swings with your ICP, traffic mix, and geography — run both on your own traffic and count usable leads, not identifications.
Does RB2B work outside the US?
RB2B resolves person-level identities for US traffic only. Warmly’s person-level resolution is also densest in the US — its identity graph is strongest there — but it isn’t hard-restricted the way RB2B is; expect more company-level than person-level matches for European and APAC visitors. If a large share of your pipeline is outside North America, weight company-level identification and run a trial on your own traffic rather than trusting advertised match rates.
How much do RB2B and Warmly cost?
RB2B publishes its prices: a $0 plan capped at 150 company-level resolutions a month, $79/month for LinkedIn URLs, and $149/month for person-level reveals with business email addresses (rb2b.com/pricing, checked August 2026). Sources disagree on Warmly: Prospeo lists no free tier and roughly $15,000/year entry pricing, while Devcommx reports a free tier and about $700/month at scale — a gap wide enough that you should get a written quote for your seat count rather than trust any published figure. Both vendors change packaging frequently, so treat all of this as directional and confirm current pricing before committing.
Do RB2B or Warmly write to Close CRM?
RB2B is Slack-first, with webhooks and integrations on paid tiers — getting leads into a CRM is your plumbing to build. Warmly’s CRM depth centers on HubSpot and Salesforce. Neither is built around Close. Lumitra is: identified companies become Close leads with contacts, custom fields, existence checks, and an audit trail.
Is person-level visitor identification compliant?
It depends on jurisdiction and on what your privacy policy discloses. US-focused vendors restrict person-level resolution to US traffic in part because of this. Company-level identification carries meaningfully less risk. Whatever tool you evaluate, ask how its identity graph is sourced and what disclosure it requires from you — and confirm with your counsel.
See what your anonymous traffic is worth — in your CRM
Book a 30-minute demo and we’ll show real visitor timelines becoming clean, deduplicated leads in a live CRM org.