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Apollo.io vs Clearbit

AI Sales tools comparison · Updated 2026

Choosing between Apollo.io and Clearbit? Both are popular AI Sales tools. Apollo.io starts at Freemium and focuses on Contact database. Clearbit starts at Freemium and specializes in Data enrichment. Here's a detailed side-by-side comparison to help you decide.

At a Glance

Apollo.io Clearbit
Category AI Sales AI Sales
Pricing freemium freemium
Starting Price Freemium Freemium
Best For sales, prospecting, lead-generation data-enrichment, firmographics, lead-scoring
Features 7 listed 6 listed

Apollo.io

AI sales intelligence platform with 270M+ contacts and automated outreach.

AI Sales freemium
VS

Clearbit

B2B data enrichment platform with firmographic and technographic intelligence.

AI Sales freemium

Feature Comparison

Apollo.io Clearbit
Contact database Data enrichment
AI lead scoring Reveal website visitors
Email sequences Form optimization
LinkedIn integration Lead scoring
Conversation intelligence API access
CRM sync HubSpot integration
Intent data

Pricing Comparison

Apollo.io

freemium

Free with 600 email credits/yr. Basic $49/user/mo. Professional $79/user/mo.

Clearbit

freemium

Free HubSpot enrichment available. Paid plans based on volume. Contact sales.

Pros & Cons

Apollo.io

Pros
  • + Massive contact database
  • + AI prospecting
  • + Affordable
  • + All-in-one platform
Cons
  • Data accuracy varies
  • Can be overwhelming
  • Email deliverability issues

Clearbit

Pros
  • + Accurate data
  • + Real-time enrichment
  • + Great API
  • + HubSpot integration
Cons
  • Pricing not transparent
  • Now HubSpot-focused
  • US-centric data

The Verdict

Both Apollo.io and Clearbit are strong AI Sales tools. Apollo.io stands out for Massive contact database, making it ideal if that's your priority. Clearbit excels at Accurate data, which may be more important for your workflow.

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