About Apollo.io
Apollo.io is an all-in-one sales intelligence and prospecting platform: a large B2B contact database, email sequencing, a dialer, buying intent and a Chrome extension, plus AI, in one tool. You find leads, enrich them and run outbound — all in the same place.
It's the default for founders and small sales teams who want a database *and* the outreach tooling without stitching together three separate vendors, and its free plan makes it easy to start.
Featured in
Guides · blogEvery place Apollo.io shows up across Choose My Stack — the research it’s part of and the articles that cover it.
Compare Apollo.io head-to-head
All comparisons →
The honest list
What we love
＋Database plus sequencing and a dialer in one affordable tool
＋Genuinely usable free plan to start
＋Best all-round value in B2B prospecting
＋Fast, self-serve — no procurement needed
＋Real 24%-off promo, not a fake coupon
Watch out for
−Data accuracy behind ZoomInfo at the top end
−Plans are gated by credit limits, not just seats
−Deliverability needs careful setup
−Higher tiers add up per seat
−Less flexible than Clay for custom enrichment workflows