Apollo.io vs Clay

A detailed comparison to help you choose between Apollo.io and Clay.

Apollo.io

Apollo.io

AI-powered B2B prospecting and outreach

Clay

Clay

AI-powered data enrichment and outreach

Rating4.1 (278 reviews)4.8 (658 reviews)
Pricing Modelfreemiumfreemium
Starting PriceFree tier availableFree tier available
Best ForSDRs and growth teams doing AI-powered B2B prospecting and outreachSales and growth teams doing AI-powered outbound prospecting
Free Tier
API Access
Team Features
Open Source
Tags
free tierteam features
free tierteam features
Visit Apollo.io →Visit Clay →

Apollo.io

Pros

  • + 275M B2B contact database
  • + AI email writing built-in
  • + Free tier is generous

Cons

  • - Data quality varies
  • - Can get expensive at scale
View full Apollo.ioreview →

Clay

Pros

  • + 75+ data enrichment sources
  • + AI personalization at scale
  • + GTM workflow automation

Cons

  • - Complex to master
  • - Credit-based pricing
View full Clayreview →

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Apollo.io vs Clay — Comparison 2026 | ToolSpotter