4 alternatives to RB2B
Reviewed by Cheetah Systems Lab research team on 2026-08-03. Competitive set: Buying signals and visitor identification. The reviewer profile includes the editorial and corrections policy.
Compare RB2B on price and setup. Check RB2B against 4 rivals on developer access, buyer fit and tradeoffs.
RB2B current baseline
Its core product is a tracking pixel that deanonymizes site traffic and routes leads into Slack, Teams, CRMs, or outreach platforms.
- Identify named people and companies visiting your website via a header pixel
- Person-level ID (name, LinkedIn profile, business email) and global company-level ID
- 5-minute install: pixel + Slack/Teams connection + CRM integration
- "Hot Leads" filtering by company revenue, size, seniority, department, category, and geography
- Route filtered leads to different destinations/integrations based on custom rules
- Published starting point
- $0/mo (Free plan, company-level ID only)
- Setup
- 5m setup assessment
- Developer access
- No developer-interface link in the checked sources
When to replace RB2B
Person-Level ID is documented as US-only. Teams with traffic outside the US should verify whether Company-Level ID provides enough detail for their workflow. The retained pricing page gives the Free plan 150 company-level resolutions per month without names, emails, or additional integrations. Starter begins at $79 per month, while the retained material assigns email addresses and full integrations to Pro at $149 per month. The vendor FAQ says it does not offer white labeling and treats its OEM program separately.
How each alternative compares with RB2B
Common Room vs RB2B
Choose Common Room when
Choose Common Room over RB2B when these published constraints align more closely with the requirement: $2,500/month (billed annually, Essential plan); custom setup assessment; Common Room's checked sources link API documentation. The corresponding RB2B constraints are $0/mo (Free plan, company-level ID only); 5m setup assessment; RB2B's checked sources did not include a developer-interface link.
Cheetah comparison of published constraints
Keep RB2B in contention when
Keep RB2B when 5m setup assessment, $0/mo (Free plan, company-level ID only), and RB2B's checked sources did not link a developer interface are the more workable constraints for the team than Common Room's custom setup assessment, $2,500/month (billed annually, Essential plan), and Common Room's checked sources link API documentation.
Cheetah assessment
Key tradeoff
Common Room versus RB2B on published starting price: Common Room - $2,500/month (billed annually, Essential plan); RB2B - $0/mo (Free plan, company-level ID only). On setup, Common Room has a custom setup assessment; RB2B has a 5m setup assessment. On developer access, Common Room's checked sources link API documentation; RB2B's checked sources did not include a developer-interface link.
Cheetah assessment
For Common Room versus RB2B, official pages checked 2026-07-31: Website used for Common Room versus RB2B, Documentation used for Common Room versus RB2B, Pricing used for Common Room versus RB2B, API documentation used for Common Room versus RB2B. These Common Room sources inform comparison with RB2B, not every sentence individually.
Factors.ai vs RB2B
Choose Factors.ai when
Choose Factors.ai over RB2B when these published constraints align more closely with the requirement: $199/month (Lite, after free trial); 30m setup assessment; Factors.ai's checked sources link MCP documentation. The corresponding RB2B constraints are $0/mo (Free plan, company-level ID only); 5m setup assessment; RB2B's checked sources did not include a developer-interface link.
Cheetah comparison of published constraints
Keep RB2B in contention when
Keep RB2B when 5m setup assessment, $0/mo (Free plan, company-level ID only), and RB2B's checked sources did not link a developer interface are the more workable constraints for the team than Factors.ai's 30m setup assessment, $199/month (Lite, after free trial), and Factors.ai's checked sources link MCP documentation.
Cheetah assessment
Key tradeoff
Factors.ai versus RB2B on published starting price: Factors.ai - $199/month (Lite, after free trial); RB2B - $0/mo (Free plan, company-level ID only). On setup, Factors.ai has a 30m setup assessment; RB2B has a 5m setup assessment. On developer access, Factors.ai's checked sources link MCP documentation; RB2B's checked sources did not include a developer-interface link.
Cheetah assessment
For Factors.ai versus RB2B, official pages checked 2026-08-03: Website used for Factors.ai versus RB2B, Documentation used for Factors.ai versus RB2B, Pricing used for Factors.ai versus RB2B, MCP documentation used for Factors.ai versus RB2B. These Factors.ai sources inform comparison with RB2B, not every sentence individually.
UserGems vs RB2B
Choose UserGems when
Choose UserGems over RB2B when these published constraints align more closely with the requirement: $2,750/mo (Core plan, billed monthly); custom setup assessment; UserGems's checked sources link API documentation. The corresponding RB2B constraints are $0/mo (Free plan, company-level ID only); 5m setup assessment; RB2B's checked sources did not include a developer-interface link.
Cheetah comparison of published constraints
Keep RB2B in contention when
Keep RB2B when 5m setup assessment, $0/mo (Free plan, company-level ID only), and RB2B's checked sources did not link a developer interface are the more workable constraints for the team than UserGems's custom setup assessment, $2,750/mo (Core plan, billed monthly), and UserGems's checked sources link API documentation.
Cheetah assessment
Key tradeoff
UserGems versus RB2B on published starting price: UserGems - $2,750/mo (Core plan, billed monthly); RB2B - $0/mo (Free plan, company-level ID only). On setup, UserGems has a custom setup assessment; RB2B has a 5m setup assessment. On developer access, UserGems's checked sources link API documentation; RB2B's checked sources did not include a developer-interface link.
Cheetah assessment
For UserGems versus RB2B, official pages checked 2026-08-03: Website used for UserGems versus RB2B, Documentation used for UserGems versus RB2B, Pricing used for UserGems versus RB2B, API documentation used for UserGems versus RB2B. These UserGems sources inform comparison with RB2B, not every sentence individually.
Warmly vs RB2B
Choose Warmly when
Choose Warmly over RB2B when these published constraints align more closely with the requirement: $10,000/year (AI Web-Deanonymization plan); custom setup assessment; Warmly's checked sources did not include a developer-interface link. The corresponding RB2B constraints are $0/mo (Free plan, company-level ID only); 5m setup assessment; RB2B's checked sources did not include a developer-interface link.
Cheetah comparison of published constraints
Keep RB2B in contention when
Keep RB2B when 5m setup assessment, $0/mo (Free plan, company-level ID only), and RB2B's checked sources did not link a developer interface are the more workable constraints for the team than Warmly's custom setup assessment, $10,000/year (AI Web-Deanonymization plan), and Warmly's checked sources did not link a developer interface.
Cheetah assessment
Key tradeoff
Warmly versus RB2B on published starting price: Warmly - $10,000/year (AI Web-Deanonymization plan); RB2B - $0/mo (Free plan, company-level ID only). On setup, Warmly has a custom setup assessment; RB2B has a 5m setup assessment. On developer access, Warmly's checked sources did not include a developer-interface link; RB2B's checked sources did not include a developer-interface link.
Cheetah assessment
For Warmly versus RB2B, official pages checked 2026-08-03: Website used for Warmly versus RB2B, Pricing used for Warmly versus RB2B. These Warmly sources inform comparison with RB2B, not every sentence individually.
Lifecycle or scope note
Acquired - standalone future uncertain. Acquired by HubSpot, announced 2026-06-30. HubSpot said contracts, pricing and product would be unchanged at announcement; treat the standalone roadmap as uncertain.
Official lifecycle source listed above
RB2B baseline sources
Verify before deciding
- A vendor-confirmed OpenAPI/Swagger specification
- Confirmation of an official MCP server for the core RB2B (visitor-identification) product, as distinct from the separate Identity/Enrichment API suite
- A machine-readable OpenAPI specification was not included in the reviewed source set.
Cheetah assessed RB2B buyer fit, setup and tradeoffs. Shortlist reviewed 2026-07-31.