RB2B vs Warmly: Choose by Workflow, Not Claims
Summarize with AI
RB2B is the more accessible choice when you want to identify website visitors and route signals into an existing sales workflow without buying a larger inbound platform. Warmly is the broader, and materially more expensive, choice when you want visitor identification bundled with live chat or an AI-operated inbound motion. The products overlap, but they are not equivalent packages. Pricing and product details in this comparison were checked against official pages on September 14, 2026.
The Fast Decision
Choose RB2B when your plan is to identify a visitor, qualify the signal, and route it into an existing sales stack. Its free and low-priced plans make that hypothesis inexpensive to test.
Choose Warmly when the requirement extends to live engagement, automated qualification, follow-up, or an inbound agent. Warmly's pricing page makes those layers explicit. Either way, someone must own exclusions, routing, CRM hygiene, privacy review, and follow-up.
Public Pricing Is Not Close
The public starting prices establish two different buying categories.
| Product and public tier | Displayed price | Displayed allowance |
|---|---|---|
| RB2B Free | $0/month | 150 monthly company resolutions |
| RB2B Starter | $79/month | 300 monthly resolutions |
| RB2B Pro | $149/month | 600 monthly resolutions |
| RB2B Pro | $249/month | 1,250 monthly resolutions |
| RB2B Pro | $349/month | 2,500 monthly resolutions |
| RB2B Pro+ | From $199/month | 600 monthly resolutions at the starting tier |
| Warmly AI Web-Deanonymization, annual | From $10,000/year | 10,000 credits/month |
| Warmly AI Web-Deanonymization, quarterly | $4,875/quarter | 10,000 credits/month |
| Warmly Inbound Chat, annual | From $20,000/year | 10,000 credits/month |
| Warmly AI Inbound Autopilot, annual | From $30,000/year | 10,000 credits/month |
RB2B's public pricing also lists a $0.25 Pro overage per resolution and a seven-day Pro trial. The same matrix shows additional domains for Pro and Pro+ as "$99/mo (up to 5)," wording that needs written clarification.
Warmly says buyers can pay quarterly to try and switch to annual to save. Its $4,875 quarterly web-deanonymization price equals $19,500 across four quarters, but quarterly buying may still be useful if the shorter commercial structure reduces commitment. Confirm term, renewal, and cancellation language in the order form rather than assuming billing cadence equals cancellation flexibility.
Credits and Resolutions Are Not Comparable Units
RB2B publishes allowances in monthly resolutions. Warmly publishes 10,000 credits per month at each displayed starting point. Warmly's public page does not define what consumes a credit, whether company and person events cost the same, how repeat visitors are counted, whether unused credits roll over, or what overages cost.
That missing definition prevents a valid unit-cost comparison.
Ask both vendors to price the same workload: eligible visitors by region; new and repeat visitors; required company and person records; qualifying pages; enrichment actions; CRM writes, alerts, chats, and automated follow-ups; and expected high-month volume.
Mark every absent number as "not supplied." A blank field is a procurement task, not zero cost.
Compare Product Scope, Not Just Identification
RB2B's plans deepen the identity and routing layer. Free provides company-level output to Slack. Starter adds LinkedIn URL delivery to Slack and Teams but no email addresses or other integrations. Pro adds business email addresses and broader integrations. Pro+ adds what RB2B calls premium resolution and an identity graph waterfall.
Warmly's web-deanonymization tier includes website visitors at contact and company level, ICP filtering, real-time and Slack alerts, lead routing, CRM sync, sales-engagement-platform or webhook connections, and retargeting through email, LinkedIn, or ads. Inbound Chat adds an AI chatbot, one AI Studio Agent, live "Warm Calling," offers, chat metrics, and automated email follow-up. Autopilot adds unlimited AI Studio Agents plus an Autopilot Agent, automated qualification and decision-making, slide generation, and follow-up features, according to the official pricing page.
That means a cheaper identity tool plus your existing CRM, sequencing, and chat stack may be the fair comparison to Warmly, not RB2B's subscription alone. Conversely, do not credit Warmly with replacing a tool until the trial proves the required workflow, controls, and data movement.
Our view: if the buying team cannot name the inbound action that requires Warmly's broader layer, it should start with the smaller RB2B test. Paying for autonomous engagement before defining qualification and stop rules adds cost faster than it adds control.
Treat Geography and Privacy as Design Inputs
RB2B's pricing matrix labels contact-level site identification as US-only and company-level identification as global. Its GDPR page describes person-level ID as resolving US data subjects and explicitly says the page is not legal advice.
Warmly's privacy policy, last updated July 12, 2025, describes data collected through its site, services, software, and integrations. It covers usage data, device data, cookies, international transfers, and notices for people in the EEA, UK, Switzerland, and applicable US states. That policy explains Warmly's general practices; it does not, on its own, tell a buyer which identity outputs are available in each country or establish that a planned use is lawful.
Require each vendor to document the product's geographic behavior, subprocessors, retention, deletion, opt-out handling, customer controls, and role in your intended use. Then have qualified counsel review the implementation. A privacy page is evidence for review, not a substitute for it.
Test Integrations as Workflows
RB2B's integrations page describes HubSpot, Salesforce, Clay, Zapier, webhooks, and outreach options. Warmly's integration directory displays a broad set that includes HubSpot, Salesforce, Pipedrive, Slack, Teams, Outreach, Salesloft, Apollo, Instantly, webhooks, advertising tools, and data or intent platforms.
Directory breadth is not workflow proof. For each required connection, test:
- Objects and fields read and written
- Account-owner and territory routing
- Duplicate handling and repeat visits
- Delay from visit to destination
- Suppression before any outreach action
- Retry behavior during outages
- Audit history and source attribution
- User permissions and emergency stop
- Export behavior when the contract ends
If you need company alerts in Slack, a complex bidirectional CRM map should not decide the purchase. If you need an inbound agent to read CRM context and write back a qualified conversation, a simple webhook test is not enough.
Run a Same-Traffic Evaluation
Vendor-reported match rates are claims, not a neutral benchmark. They may use different denominators, traffic filters, regions, definitions of a match, or identity levels. A company match and a usable person match are not the same outcome.
Run both products on the same approved pages and time window where technically and contractually permitted. Use one eligibility definition. Then classify every result:
| Outcome | Question |
|---|---|
| Eligible visit | Was the visit inside the agreed geography and consent rules? |
| Resolved company | Is the company correct and useful for the ICP? |
| Resolved person | Is the person correct, current, and appropriate to action? |
| Routed record | Did it reach the correct owner with required context? |
| Accepted signal | Did the operator accept it after exclusions? |
| Actioned signal | Did the approved next step happen without repair? |
Measure false matches, duplicates, missing fields, and operator time beside accepted records. The useful numerator is not every identity returned. It is the records that survive policy, qualification, and routing.
Normalize total operating cost. Create a first-year sheet with subscription, overages, additional domains, implementation, retained tools, replaced tools, integration work, operator labor, privacy review, and exit work.
RB2B Pro annualizes to $1,788 at 600 monthly resolutions, $2,988 at 1,250, and $4,188 at 2,500 before overages or additional-domain charges. Pro+ starts at an annualized $2,388 for 600 if maintained for 12 months. These are planning calculations from the displayed monthly prices, not statements about contract term or payment schedule.
Warmly publishes annual starting prices directly. Its quarterly web-deanonymization option has a higher full-year run rate than the $10,000 annual starting price. Ask what implementation, support, seats, domains, credits, and overages the quote includes. Credit labor reductions only after the trial measures them; automation that creates daily exception work has moved labor, not removed it.
The RB2B vs Warmly Decision
RB2B is easier to test when you already have a sales operating system and need one new website signal. Warmly makes more sense when the business case includes live engagement or an AI inbound workflow and the team can support a five-figure annual platform decision.
The final scorecard should weight usable identity, geographic fit, required workflow, integration evidence, operator effort, controls, contract terms, and exit, not just raw matches. A defined and tested live-engagement workflow is the condition that can justify Warmly's incremental cost.
Map the Product to Your Real Campaign
We can map your traffic, ICP, regions, follow-up capacity, and existing stack into a same-workload comparison during a free ICP and campaign-fit discovery call. Book your free ICP and campaign-fit discovery call →
Frequently Asked Questions
A modern outbound stack includes: data enrichment (Apollo, Clay, ZoomInfo), email infrastructure (Google Workspace, custom domains), sending tools (Smartlead, Instantly), warm-up services (Warmbox), LinkedIn automation (Expandi, Dripify), CRM integration (HubSpot, Salesforce), and analytics platforms. Most agencies use 15–30 tools orchestrated together.
Building your own stack costs $3K–5K/month in software alone, plus a dedicated person to manage it. With a managed service, you get all the tooling plus the expertise to orchestrate it, often at lower total cost. The key question: can you afford to spend 6–8 weeks setting up instead of generating pipeline?
There's no single 'best' tool. It depends on your volume, budget, and integration needs. Smartlead and Instantly are popular for high-volume sending. Apollo doubles as a data and sequencing platform. The real advantage comes from how tools are orchestrated together, not from any single tool choice.
Look for three things: (1) Do you own the infrastructure they build? (2) Are they month-to-month once proven, or hiding behind a long contract? (3) Can you see transparent metrics and real case studies with specific numbers? Avoid long contracts, vague reporting, and agencies that own your domains.
Data enrichment is the process of taking basic company or contact data and adding layers of detail: job titles, direct emails, phone numbers, technographics, intent signals, company size, funding stage, and more. Enrichment tools like Apollo, Clay, and ZoomInfo pull from multiple data sources to build a complete prospect profile before outreach begins.

Jacob Martinez
GTM Engineer, LeadHaste
Builds the machinery behind client campaigns: scraping, enrichment, lead scoring and the automations that keep a list clean before anyone gets emailed.