Apollo.io
AI Sales & RevenueAI-powered sales intelligence platform combining 210M+ contact database, outbound automation, inbound lead routing, and conversation intelligence in one unified system.
Apollo.io is a comprehensive sales intelligence and engagement platform that consolidates data enrichment, prospecting, outbound automation, and conversation intelligence into a single solution. With access to over 210 million contacts and 30 million companies, it enables sales teams to identify prospects, automate multichannel sequences, capture and route inbound leads, and analyze conversations with AI-powered insights. The platform positions itself as a tech stack consolidation tool, replacing separate data providers, outreach platforms, dialers, and enrichment services while maintaining deep CRM integrations.
Best for
Sales and RevOps teams seeking to consolidate their tech stack with a unified platform for prospecting, enrichment, outbound automation, and conversation intelligence.
Editorial profile generated March 19, 2026 · pricing & endpoint re-verified continuously (see badges above)
27/50
Overall Score
API Quality
8/10
GTM Relevance
19/20
PricingFreemium
Complexitymedium
Learningmedium
Visit apollo.io →API Analysis
REST API
✓
Available
Webhooks
✓
Available
GraphQL
—
—
OAuth
✓
Available
salesforcehubspotoutreachsalesloftzapierslackgmaillinkedin
Pricing
freemiumFree Tier
Free plan with limited credits; Basic starts at $49/user/month; Professional at $79/user/month; Organization at $119/user/month with custom enterprise pricing available.
Listed pricing, as of Mar 2026 — not independently verified; confirm on the vendor's site before relying on it.
What users say
Themes from 9,694 real reviews on G2 · ★ 4.7
Users like
Large B2B contact database with accurate company and contact information
Multi-channel sequences for email and calls in one platform
Easy to use interface for prospecting and building lead lists
Good CRM integration, especially with Salesforce
Affordable pricing compared to other sales tools
Users dislike
Email deliverability issues and emails going to spam
Contact data accuracy problems with outdated or incorrect information
Credit system limitations on the free and lower-tier plans
Customer support can be slow to respond
Learning curve for advanced features and sequences
Alternatives
Reviews
Links
FAQ
What is Apollo.io?
Apollo.io is a comprehensive sales intelligence and engagement platform that consolidates data enrichment, prospecting, outbound automation, and conversation intelligence into a single solution. With access to over 210 million contacts and 30 million companies, it enables sales teams to identify prospects, automate multichannel sequences, capture and route inbound leads, and analyze conversations with AI-powered insights. The platform positions itself as a tech stack consolidation tool, replacing separate data providers, outreach platforms, dialers, and enrichment services while maintaining deep CRM integrations.
Is Apollo.io free?
Yes, Apollo.io offers a free tier. Free plan with limited credits; Basic starts at $49/user/month; Professional at $79/user/month; Organization at $119/user/month with custom enterprise pricing available. Pricing shown is as last reviewed and may change — confirm current pricing on the vendor's site.
What are Apollo.io alternatives?
Popular alternatives to Apollo.io include Outreach, Salesloft, Cognism, Amplemarket, HubSpot, Salesforce. Compare features, API quality, and pricing on GTM Tools.
Does Apollo.io have an API?
Yes, Apollo.io provides a REST API. API quality is rated EXCELLENT. Documentation: https://apolloio.github.io/apollo-api-docs/.
Who is Apollo.io best for?
Sales and RevOps teams seeking to consolidate their tech stack with a unified platform for prospecting, enrichment, outbound automation, and conversation intelligence.
How current is Apollo.io's data on GTM Tools?
Endpoint reachability and pricing for verified-tier tools are re-checked on a schedule — see the verification badges on this page for the latest check. The editorial profile (description, strengths and weaknesses) is last generated March 2026, and any user-review themes are pulled from G2.