RB2B Review 2026
Last reviewed June 2026 by Théo Pascard
Overview
RB2B identifies individual people visiting your website — US-focused — and pushes their profiles to Slack in real time, so reps can act on intent instantly. Its edge is a genuinely free person-level tier and a product-led, Slack-native workflow that made it a community favorite. The trade-offs are scope: it's US-only, reviewers flag filtering and data-accuracy gaps, and it's an identification signal, not a database or a sequencer — pair it with one to act.
Enjyn Score
iWeighted across 5 axes, computed from public review data (G2, Capterra) and reweighted on our rubric — then overridden on the axes we operate first-hand.Who it's for
- →Founders and SMB teams wanting free US visitor identification
- →Sales teams that live in Slack and want real-time intent
- →PLG motions acting on individual visitor signals
Not for
Capabilities
- Person-level US visitor identification
- Real-time Slack push
- LinkedIn + work email on identified visitors
- Filtering & ICP rules
- CRM / webhook integrations
- Free tier to start
Ratings & reviews
👍 Pros
👎 Cons
Pricing
| Tier | Price | Credits / mo | Notes |
|---|---|---|---|
| Free | Free | — | Person-level US visitors to Slack |
| Starter | $79/mo | — | More profiles + filters |
| Pro | $149/mo | — | Higher volume + integrations |
| Pro+ | $199/mo | — | Top volume tier |
Our advice
The honest take
Where it breaks
The verdict
Integrations
Alternatives
FAQ
Who is RB2B best for?
Founders and SMB sales teams in the US who want free, real-time, person-level website visitor identification pushed straight to Slack. It fits PLG motions acting on individual visitor signals and reps who live in Slack and want intent the moment it happens — provided their buyers are US-based, since coverage is US-focused, and they pair it with enrichment and a sequencer to act.
How much does RB2B cost?
There's a free plan, then Starter at $79/mo, Pro at $149/mo and Pro+ at $199/mo for more volume, filters and integrations. The free tier delivers person-level US visitors to Slack, while paid tiers add more profiles, filtering and ICP rules, and CRM or webhook integrations as you move up to the top Pro+ volume tier.
Is RB2B person-level or company-level?
Person-level — RB2B names the individual visitor, not just the company, and pushes their profile (with LinkedIn and work email) to Slack in real time. Coverage is US-focused, unlike company-level tools such as Leadfeeder, which name the organization. For EU or global company-level identification, Leadfeeder fits better; for global person-level, Warmly does.
Does RB2B work outside the US?
Coverage is US-focused, so identification drops off outside the US. For EU or global company-level identification, Leadfeeder fits better with its strong, GDPR-compliant European coverage; for a global person-level platform, Warmly works but is far pricier with annual enterprise pricing. If your buyers are mostly US-based, RB2B's free person-level Slack workflow is the fastest place to start.
RB2B vs Warmly?
Both identify people on your site, but RB2B is free and US-focused with a Slack-first workflow, while Warmly is a pricier global platform with autonomous inbound and outbound agents and annual pricing from $10k/yr. RB2B is the easy free test for US person-level intent in Slack; Warmly suits mid-market teams with traffic and budget wanting global reach plus agents.
What are the best RB2B alternatives?
Leadfeeder for company-level EU coverage, Warmly for a global person-level platform, and Clay to enrich and action the signals. Leadfeeder names accounts with strong GDPR-compliant European reach, Warmly extends person-level identification globally with autonomous agents, and Clay adds the enrichment to turn an identified visitor into a contact you can actually reach and sequence.
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