Apollo.io vs Clay
These tools get compared constantly and they are not really substitutes. Apollo is a database you query: 275M+ contacts with sequencing and a dialer attached, priced per seat. Clay is an orchestration layer that queries other databases — running waterfall enrichment across 100+ providers, falling through until a field is found, then triggering AI research on top. One replaces your list source; the other replaces the process of building lists.
Apollo.io
All-in-one sales intelligence database with built-in sequencing.
Clay
Data enrichment and automation that chains 100+ providers into one workflow.
| Feature | Apollo.io | Clay |
|---|---|---|
| Rating | 4.3 | 4.5 |
| Starting price | $49/moper user, billed annually | $167/momonthly billing; $54/mo billed annually |
| Free trial | Yes | Yes |
| Contact database | 275M+ contacts | — |
| Email sequencing | Yes | — |
| Free tier | Yes | 500 actions, 100 credits/month |
| Dialer | Yes | — |
| Actions | — | 15,000 (Launch) → 40,000 (Growth) |
| Data credits | — | 3,000 (Launch) → 6,000 (Growth) |
| Waterfall enrichment | — | 100+ providers |
| Annual discount | — | $54/mo billed yearly (Launch) |
The verdict
Apollo is the better default and by far the cheaper starting point, with a genuinely usable free tier and everything in one place. Clay is the better answer once Apollo's coverage stops being good enough for your segment — waterfall enrichment across many providers will find contacts no single database holds, and that is worth real money to teams whose prospects are hard to reach. It costs $167/mo on monthly billing against Apollo's $49/user, so the question is whether your data problem justifies roughly triple the spend.
Choose Apollo.io if you want contact data, sequencing and a dialer in one tool at a low price, with a free tier substantial enough to test properly. Choose Clay if single-source data coverage has become your bottleneck, and you have the appetite to build enrichment workflows rather than pull lists.
Apollo.io vs Clay: FAQs
- Is Clay a replacement for Apollo?
- Not usually — it is a layer above. Clay can call Apollo as one of its data providers, so many teams keep Apollo as a source and use Clay to orchestrate it alongside others when coverage falls short.
- Which is cheaper?
- Apollo, clearly. It starts at $49 per user (billed annually) and has a free forever tier. Clay's Launch plan is $167/mo on monthly billing, or $54/mo billed annually, with a free tier of 500 actions and 100 credits.
- Does Clay send email like Apollo?
- Clay can trigger outreach as part of a workflow, but it is not a sending platform — deliverability tooling, warmup and mailbox rotation are not its focus. Apollo has sequencing built in, though sending is not its core strength either. For deliverability at volume, pair either with a dedicated cold email platform.
- What is waterfall enrichment?
- Querying data providers in sequence rather than relying on one: if the first has no email for a contact, the request falls through to the next, and the next. It materially improves coverage over any single database, and it is Clay's main technical argument.
- Which has more contacts?
- The question does not quite apply. Apollo advertises 275M+ contacts in its own database; Clay does not own a database and instead reaches across 100+ providers. Neither number tells you about coverage of your specific segment, which is why both free tiers are worth using before committing.