Apollo.io vs ZoomInfo: Which Sales Intelligence Tool is Worth Your Money?

Sales intelligence tools are essential for B2B prospecting, but the price gap between Apollo.io and ZoomInfo is massive. Apollo starts free (yes, actually free) while ZoomInfo starts around $15,000/year. Is ZoomInfo really worth 10x the price? We compared both tools head-to-head.

Database Size & Quality

Apollo.io claims 275+ million contacts. ZoomInfo reports 321+ million profiles. Both databases overlap significantly for US B2B contacts. Where ZoomInfo pulls ahead is in international data, technographic data, and intent signals. For most teams doing outbound in the US, the data quality difference doesn’t justify the price gap.

Built-in Features

Apollo includes email sequences, a power dialer, LinkedIn integration, and a built-in CRM — all included in paid plans starting at $49/user/month. ZoomInfo’s core product is data only; you need separate tools (and budgets) for sequences, calling, and CRM.

Our Recommendation

For teams under 50 people with budgets under $50K/year for sales tools, Apollo.io is the clear winner. You get 80% of ZoomInfo’s data quality with built-in engagement tools, at roughly 10% of the cost. Start with Apollo’s free plan to test it risk-free.