ANALYSIS VERDICT

RB2B leads on autonomy (83 vs 72), while Warmly has no verified price. Select RB2B for identifies specific us individuals visiting your site, not just company domains; consider Warmly if you prioritize identifies anonymous b2b accounts on your website.

Metric / Feature
Autonomy Score (AES)
83/100
72/100
Value-to-Cost Ratio4.51—
Starting Price$0/moContact sales
Pricing Modelfreemiumpaid
Primary Strengths
  • Identifies specific US individuals visiting your site, not just company domains
  • Generous free plan with unlimited Slack notifications
  • Immediate real-time alerts enable fast sales outreach
  • Identifies anonymous B2B accounts on your website
  • Automated instant video chat & AI chat triggers
  • Slack real-time rep alerts
Tradeoffs
  • Person-level identification is limited to US traffic (company level elsewhere)
  • Requires automated enrichment pipeline to convert to emails
  • High monthly software floor
  • Requires consistent website traffic (3,000+ monthly visits) for ROI
Common Integrations

Slack, HubSpot

Unique Integrations

Clay, Webhooks, Zapier

Salesforce, LinkedIn

Pricing tier comparison

RB2B tiers

Free
$0 /month
  • 150 Monthly Resolutions
Starter
$79 /month
  • 300 Monthly Resolutions
  • 45¢ overage per resolution
Pro
$149 /month
  • From price
  • 600 to 2,500 Monthly Resolutions
  • 25¢ overage per resolution
Pro+
$199 /month
  • From price
  • 25¢ overage per resolution

Warmly tiers

Starter
$499 /mo
  • Identifies anonymous B2B accounts on your website
  • Standard API & webhooks
  • Core data/outbound allowance
Growth
$798 /mo
  • Multi-user team workspace
  • Bi-directional CRM synchronization
  • Priority processing queues
Enterprise Scale
Custom /custom
  • Unlimited volume & custom concurrency
  • Custom data waterfall prioritization
  • Dedicated account manager

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