Compare/Head to head

Common Room vs RB2B

Same facts, side by side: starting price, free tier, MCP, API and what each one is actually built for.

Starting price

Common Room

$2,500/mo

Customer intelligence that unifies community, product, CRM, and web signals. Essential is $2,500/mo billed annually.

Where Common Room fits

GTM teams with community and product signal
HubSpot, Salesforce, or Outreach shops
Companies that outgrew website-only visitor ID
Buyers who want MCP on a customer-intel graph

RB2B

$79/mo Free tier Free trial

Person-level US website visitor identification. Free company-level plan; Starter is $79/mo; 7-day Pro trial.

Where RB2B fits

US inbound teams who want to know which person is on the site
HubSpot or Salesforce shops
Clay and Instantly users turning visits into outbound
Buyers who will start free at company-level

At a glance

Detail	Common Room	RB2B
Starting price	$2,500/mo	$79/mo
Free tier	–No	✓Yes
Free trial	Not on record	Yes
MCP server	✓Yes	–No
Public API	✓Yes	–No
Listed under	Lead generation, Visitor ID	Email finders, Lead generation, Visitor ID

Where they pull apart

Common Room

Stands out: Person-level buyer intelligence across community plus product plus CRM (RoomieAI and MCP included on Essential), not a $49 visitor-ID pixel.

Watch out: $2,500/mo is 5 seats and 100k contacts on Essential. This is a GTM platform, not a recruiting pixel.

Not the right fit for

SMB recruiting teams
Buyers who need $49 company ID
People who only want a careers-site pixel

RB2B

Stands out: US person-level visitor ID with a forever-free company-level rung, with HubSpot, Salesforce, Slack, Clay, and Zapier named.

Watch out: Person-level starts at Starter $79. Pro is $149 and Pro+ $199. This is US-centric; do not expect EU personal identification.

Not the right fit for

EU GDPR-first visitor ID
Teams that only need account-level (Albacross/Snitcher)
People who need a sequencer

Pros and cons

Common Room

Public $2,500/mo Essential
Community plus product plus CRM signals
Named GTM connectors plus MCP

Five-figure annual commitment
Wrong product for TA-only visitor ID
No free trial advertised

RB2B

Forever-free company-level plus $79 person-level Starter
7-day trial
HubSpot, Salesforce, Slack, Clay, Zapier named

US person-level, not a global GDPR product
Not a sequencer
Paid rungs escalate quickly

What each one costs

Common Room

$2,500/mo

Essential is listed at $2,500/mo billed annually (5 seats, up to 100k contacts, RoomieAI and Prospector credits). Advanced and Enterprise are custom with higher seats, contacts, and credits. MCP and core CRM/SEP/Slack integrations are included on every plan. No public free trial noted.

Checked 4 Nov 2026

RB2B

$79/mo

Free is $0 with company-level ID and 150 resolutions a month. Starter is $79/mo for person-level LinkedIn URLs to Slack or Teams and 300 resolutions. Pro starts at $149/mo with business emails and all integrations, and Pro+ starts at $199/mo with premium resolution, both from 600 resolutions a month. Overage is 45 cents a resolution on Starter and 25 cents on Pro and Pro+. Every account gets a 7-day full-featured trial with no card. Person-level ID is US only. Confirm current terms on the vendor site.

Checked 4 Nov 2026

Common questions

Is Common Room cheaper than RB2B?

RB2B starts lower, at $79/mo against $2,500/mo for Common Room. That is the entry plan on each side, so the real number depends on seats and the tier you land on.

Can you try Common Room or RB2B for free?

RB2B carries a free tier on our listing. RB2B offers a free trial.

Does Common Room or RB2B have an MCP server?

Common Room ships a first party MCP server, so an AI assistant can work the product directly.

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Editorial listings, never paid rankings. Prices checked 4 Nov 2026. Confirm current terms on the vendor site. Spot an error?