Home / Tools / Apollo.io
Apollo.io
A combined B2B database and outreach tool with a free tier, a common first prospecting stack.
Prospecting Data · third-party tool · Setup: Easy (our estimate) · Last verified 2026-10-14
Our take
Apollo pairs a contact and account database with outreach, dialing, and agents that research accounts and write outreach. The free Starter plan has no time limit, which in our view makes it an easy way to test fit before paying. Apollo says plans are for internal business use only, so agencies reselling data should read the terms.
Opinion based on the vendor's published documentation. We have not tested this product hands-on. How we review.
Key features
- Contact and account database (Apollo cites 240M+ contacts and 30M+ accounts)
- Prospecting, outreach, and dialing in one workspace
- Agents that research accounts, prioritize leads, write outreach, and book meetings
- Works from your CRM, ChatGPT, Claude, Gmail, and browser
From the vendor's page: www.apollo.io
Pros (our view)
- Free plan to start
- Data and outreach in one product
Cons (our view)
- Data use is restricted to internal business use
- Free plans can connect Gmail accounts only
Comparisons
Alternatives to Apollo.io
- ZoomInfo
A large B2B data provider with intent signals and AI features, priced by quote.
- Lusha
A contact data provider with a free tier, a Chrome extension, and an MCP server for AI assistants.
- Clay
A flexible data enrichment and GTM workflow builder for teams that want to design their own plays.