Apollo.io vs Warmly

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

Apollo.io

Apollo.io

AI-powered B2B prospecting and outreach

Warmly

Warmly

AI identifies and converts warm website leads

Rating4.1 (278 reviews)4.9 (447 reviews)
Pricing Modelfreemiumfreemium
Starting PriceFree tier availableFree tier available
Best ForSDRs and growth teams doing AI-powered B2B prospecting and outreachB2B companies wanting to identify and convert anonymous website visitors with AI automation
Free Tier
API Access
Team Features
Open Source
Tags
free tierteam features
free tierteam featuresapi access
Visit Apollo.io →Visit Warmly →

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 →

Warmly

Pros

  • + Website visitor identification
  • + AI agent outreach automation
  • + Integrates with CRM

Cons

  • - Primarily B2B use case
  • - Needs traffic volume to see value
View full Warmlyreview →

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Apollo.io vs Warmly — Comparison 2026 | ToolSpotter