AI Sales Prospecting Software
RB2B
SF 7.6Person level visitor identification for US
Free · PaidPro from $139/moFree plan available; paid plans start at $139 per month
AI Sales Prospecting Software
Apollo.io
SF 8.9AI sales intelligence and engagement platform
Free · PaidPro from $49/moFree plan available; paid plans start at $49 per user per month annual
Quick decision guide
Choose based on your workflow
RB2B may fit better if...
- Person Identification
- US Traffic
- Slack Alerts
Apollo.io may fit better if...
- B2B Database
- Email Sequences
- Built In Dialer
Overview
How each tool is described
RB2B
What is RB2B?
RB2B is a B2B website visitor identification platform that helps businesses identify companies and professional visitors browsing their websites and turn anonymous website activity into sales intelligence. It provides visitor data, enrichment, and routing workflows that allow sales and marketing teams to understand who is engaging with their website and decide how to follow up.
- Website visitor identification: RB2B helps businesses reveal information about anonymous website visitors, including company details and professional profiles, allowing teams to understand which organizations are showing interest in their content or products.
- Lead activation workflows: identified visitor information can be delivered into sales workflows through integrations such as Slack and CRM systems, helping teams notify relevant people and take action on high-interest visitors.
- Intent-based prospecting: teams can use website activity signals, such as pages viewed and engagement patterns, to prioritize accounts that may be worth contacting.
- Revenue team use cases: RB2B is designed for B2B sales and marketing teams that want additional visibility into website traffic and prospect activity, particularly when many potential buyers visit without completing forms.
RB2B is most suitable for companies with existing website traffic that want to uncover potential prospects from anonymous visitors and connect website engagement data with outbound sales processes.
Apollo.io
What is Apollo.io?
Apollo.io is a go-to-market platform that combines B2B sales intelligence, data enrichment, outbound engagement, and AI-assisted prospecting in one system. Revenue teams can search for people and companies, build targeted prospect lists, enrich CRM records, run email and multichannel sequences, and manage prospecting workflows without stitching together separate data and engagement products.
- Prospecting and enrichment: Apollo helps users identify companies and decision-makers, build targeted lists, and enrich contact and account records with demographic, firmographic, technographic, intent, and other business data. Enrichment can be applied to CRM records, CSV files, or other systems through Apollo’s API.
- Sales engagement: teams can build sequences that combine automated emails with calls, LinkedIn tasks, and other follow-up activities. This allows prospect discovery and outbound execution to remain connected instead of moving leads between separate intelligence and sales-engagement tools.
- Apollo AI Assistant: Apollo’s current AI Assistant goes beyond generating copy. Users can give it natural-language instructions to find and qualify prospects, research people and companies, build or enrich lists, create personalized sequences, improve messaging, and assist with campaign optimization. Apollo also provides AI Research for generating reusable research fields about people and companies.
- CRM and revenue workflows: Apollo can enrich and synchronize data with supported CRM environments, including Salesforce and HubSpot, while its APIs enable organizations to connect prospecting, enrichment, sequences, tasks, and other Apollo data with their broader sales technology stack.
Apollo.io is particularly relevant to sales, business development, RevOps, and go-to-market teams that want prospect data, enrichment, outreach execution, and increasingly agentic AI workflows within the same platform. Its suitability depends on required data coverage, outreach channels, CRM architecture, and how much of the outbound process a team wants to operate inside Apollo.
Side-by-side
Key differences
Criteria
AI Sales Prospecting SoftwareRB2B
AI Sales Prospecting SoftwareApollo.io
Best for
AI Sales Prospecting Software
AI Sales Prospecting Software
Score
7.6/10
8.9/10
Pricing
Free · PaidPro from $139/mo
Free · PaidPro from $49/mo
Category / audience
AI Sales & CRM Software › AI Sales Prospecting Software
- slack alerts
- b2b prospecting
- visitor identification
AI Sales & CRM Software › AI Sales Prospecting Software
- email sequences
- ai sales intelligence
- b2b contact database
OVERLAP
Where RB2B and Apollo.io are similar
Both tools cover similar catalog signals. The deciding factor is usually workflow fit, implementation needs, and ecosystem fit.
2 capabilities0 workflows
Shared capabilities
Capability overlap
Feature check
Side-by-side feature check
Feature
RB2B
Apollo.io
Person IdentificationIdentify website visitors at the person level
-
US TrafficPerson level identification across United States traffic
-
Slack AlertsSlack alerts across captured visitor identification events
-
LinkedIn ProfilesSurface LinkedIn profiles across identified website visitors
-
B2B DatabaseVerified contacts across 270M+ B2B database
-
Email SequencesRun multichannel email sequences across SDR teams
-
10 capabilities compared.8 differentiating rows are shown first.
Use cases
Who they're built for
RB2B
- Identify person level visitors todayIdentify person level visitors across captured United States traffic
- Surface LinkedIn profiles fast todaySurface LinkedIn profiles across identified website visitors today
- Trigger Slack alerts fast todayTrigger Slack alerts across captured visitor identification events
Apollo.io
- Build prospect lists at scaleBuild prospect lists across Apollo B2B database for outreach
- Run cold email sequences todayRun cold email sequences across SDR teams at scale
- Enrich CRM contact records todayEnrich CRM contact records across captured Apollo data
The trade-offs
Pros & cons of each tool
Trade-offs
RB2B
Pros
- Person level visitor identification across United States traffic
- Free starting tier across new growth stage users
- Affordable identification platform relative to enterprise visitor alternatives
Cons
- United States traffic only; limited international identification today
- Smaller public review base; specialist visitor identification vendor
- AI relevance limited; focused on identity resolution
Trade-offs
Apollo.io
Pros
- Massive contact database with affordable per seat plans
- Free starting tier across new sales teams today
- Combines prospecting and engagement across single platform
Cons
- Public reviews note data accuracy varies by segment
- Credit limits can pinch heavy outbound prospecting users
- AI features are layered, not deeply AI native
Final verdict
Apollo.io has the stronger catalog fit
Current catalog data gives Apollo.io more decision signals for this pair. Verify pricing, setup effort, and ecosystem fit before committing.
Shared catalog overlap
RB2B and Apollo.io share 2 catalog signals, so the decision should focus on fit rather than broad capability alone.
Differentiators available
RB2B has 4 visible decision signals and Apollo.io has 4.
Score signal
Apollo.io has the higher SoftFinders Score in the current catalog data.
Choose RB2B if…
- Identify person level visitors today
- Surface LinkedIn profiles fast today
- Trigger Slack alerts fast today
- Person Identification
Choose Apollo.io if…
- Build prospect lists at scale
- Run cold email sequences today
- Enrich CRM contact records today
- B2B Database
TRY THEM YOURSELF
See which one fits your workflow
Both tools have their strengths, the best way to decide is to spend a few minutes inside each.