Apollo.io vs Clay
What each one’s own pages state, side by side. Every value is a quote AirStack found on that product’s pages; “Not observed” means AirStack has not found it on that product’s pages.
| Apollo.io | Clay | |
|---|---|---|
| What it says it does | Grow revenue with one connected GTM system apollo.io | Infrastructure to get any data, run agentic workflows, and launch GTM plays. clay.com |
| Starting at | Not observed | $167 Launch / month |
| Integrations | ChatGPT, Claude, Gmail, HubSpot, LinkedIn, Marketo, Outreach, SalesLoft, Salesforce, Sendgrid, Cursor, Perplexity, Replit, Mailgun, Outlook, Snowflake, Vidyard, Adobe Marketo, Airtable, Albato, Allô: AI Phone System for Modern Teams, Amplitude, Apollo.io Chrome Extension, Asana, Ask Steve, Bouncer, Bytemine, Claude by Anthropic, Slack apollo.io | Google, Linkedin, Meta, BigQuery, Databricks, Fivetran, Postgres, Snowflake, ActiveCampaign, Airtable, Anthropic, Apollo.io, Salesforce, HubSpot, Gong, Outreach, Google BigQuery, Owler, OpenAI/GPT, Google Maps, PitchBook, Pipedrive, Lemlist, Lavender, Notion, ZoomInfo, Marketo, Leadfeeder, CB Insights, Hunter, People Data Labs, Findymail, Datagma, ContactOut, LeadMagic, Crunchbase, Wiza, Firmable, Crossbeam, Trestle, BuyerCaddy, Spade, Twain, Upcell, Warmly, Sumble, Beauhurst, Dropcontact clay.com |
| Compliance | CCPA, GDPR, SOC 2 apollo.io | CCPA, GDPR, ISO 27001, SOC 2 clay.com |
| Free plan | Yes apollo.io | Yes clay.com |
| Plans | Free, Basic, Professional, Custom apollo.io | Enterprise, Free, Growth, Launch, Growth+, Launch+ clay.com |
| Models supported | Not observed | GPT-5.1, Claude 4.6 Sonnet clay.com |
| Pricing basis | Not observed | Usage-based pricing clay.com |
| Customers (their claim) | Join over 600,000 companies using Apollo apollo.io | Trusted by more than 500,000 leading GTM teams of all sizes. clay.com |
Where they differ
- Clay claims ISO 27001 on its own pages; Apollo.io’s pages read by AirStack do not mention it.
Prices are list prices as written on each pricing page; check them before you buy. Nothing here is a ranking or a recommendation.