Apollo vs Clay
Apollo is a prospecting database with built-in email sequencing. Clay is a data-enrichment and workflow tool that orchestrates dozens of outside providers. They solve overlapping but different problems.
Choose Apollo when you want one platform that combines a contact database with built-in sequencing and a dialer. Choose Clay when you need to enrich data from many providers at once, build custom scoring or routing logic, and are willing to pair it with a separate sending tool or use its native sequencer.
The short answer
- Apollo owns a proprietary contact and company database. It bundles that with built-in email sequencing, a dialer, and a Chrome extension. It is built to be one all-in-one prospecting and outreach tool.
- Clay does not own a primary database in the same way. It orchestrates enrichment from 150+ third-party providers through 'waterfall' lookups and lets teams build custom GTM workflows around that data.
- Clay has a native Sequencer for outbound messaging. Many teams use it mainly for enrichment and route the actual sending through a separate platform, sometimes Apollo itself.
- Apollo's credit system caps non-paying accounts at 10,000 credits per account per month. Clay's paid plans start at $167/mo (Launch), with a monthly allotment of both workflow actions and data credits.
Apollo vs Clay at a glance
| Dimension | Apollo | Clay |
|---|---|---|
| Core model | Owned contact/company database plus built-in outreach tools | Orchestrates 150+ third-party data providers via 'waterfall' enrichment |
| Free tier | Starter plan, free forever, with limited credits | Free plan: 500 actions/mo, 100 data credits/mo, unlimited seats/tables |
| Entry paid pricing | Not published as a fixed dollar figure on the current pricing page; see apollo.io/pricing for current tier costs | Launch plan from $167/mo: 15,000 actions/mo, 3,000 data credits/mo |
| Native sequencing | Yes, built-in email sequences with the platform, plus a dialer | Yes, a native Sequencer, though many teams pair Clay with a separate sending tool |
| Seats | Priced per seat on paid plans | Unlimited seats included on every paid tier |
| Integrations | Native integrations with Salesforce, HubSpot, Outreach, Salesloft, and others | 150+ data-provider integrations plus CRM auto-sync and HTTP API on Growth and above |
| Best-fit use case | A team that wants prospecting data and outreach in one tool without heavy custom workflow building | A team that wants to enrich data from many sources and build custom scoring, routing or GTM logic |
Figures checked on vendor pricing pages, September 2026 (apollo.io/pricing, clay.com/pricing). Apollo's exact per-tier dollar prices are not shown in this table; its pricing page renders the comparison grid dynamically and the current dollar figures were not independently confirmed at write time, so they are omitted rather than guessed.
Where each tool holds up, and where it doesn't
Apollo
- One platform for prospecting data, sequencing and calling, without needing to wire together separate tools
- Free forever Starter plan makes it easy to try before committing to a paid tier
- Less flexible than Clay for custom enrichment logic or pulling from multiple third-party data sources at once
- Credit limits on non-paying accounts (10,000/month) cap how far you can push the free tier
Clay
- Orchestrates 150+ data providers through waterfall enrichment, which no single-source database can match for coverage
- Unlimited seats on every paid plan, useful for teams that want multiple people building workflows without per-seat cost
- Not primarily an outreach tool; teams often still need a separate sender even though Clay has a native Sequencer
- Entry paid pricing starts at $167/mo, higher than Apollo's published free tier, with cost scaling by actions and data credits used, which can be harder to predict than a flat per-seat price
How to choose
Start with what you are trying to do. If the job is finding contacts at target companies and getting a sequence out the door quickly, Apollo covers that in one subscription. An owned database, built-in sequencing and a dialer. It is built to be the whole prospecting-to-outreach loop without much custom configuration.
If the job is enriching data you already have, Clay is the better fit. The same goes for building GTM logic that pulls from several providers, checks signals, scores leads, and routes them differently on criteria you define. Its waterfall enrichment across 150+ providers and its workflow-building interface exist for that kind of custom logic. Apollo's more fixed sequencing structure does not attempt to replicate it.
Many teams end up using both. Apollo or another CRM as the system of record and sender. Clay as the enrichment and workflow layer that feeds it. That is not a compromise. It is how the two tools are built to complement each other, because they are not solving quite the same problem.
Questions
- Can you use both Apollo and Clay?
- Yes, and it is a common pairing. A frequent setup pulls contact and company data from Apollo's own database. It then routes that data through Clay for deeper enrichment, waterfall lookups across dozens of providers, and custom workflow logic, before it lands in a CRM or a sending tool. The two are not competing for the same job as often as they might look. Apollo's core strength is its own database and built-in sequencing. Clay's is orchestrating everyone else's data and building workflows around it.
- How do you migrate from Apollo to Clay, or the other way?
- Moving contact and company data between them is straightforward. Both support CSV export and import, and API access. The harder part is rebuilding workflow logic. Apollo's built-in sequences do not translate directly into Clay's workflow and enrichment structure. Clay's multi-provider waterfall enrichment is not something Apollo replicates on its own. Expect to rebuild the outreach or enrichment logic in whichever tool you move to, not only move the data.
- Does Clay replace an outbound tool like Apollo, or do you still need one?
- Clay has its own native Sequencer for triggering outbound messaging, so it can run outreach on its own. In practice, many Clay users still route the actual sending through a separate tool: an ESP, Apollo, or another sequencing platform. They use Clay mainly for the enrichment and data orchestration layer. Whether you need a separate sender depends on how much you rely on Clay's native sequencing versus using it as a data pipeline.
- Which one has a bigger contact database?
- Apollo runs its own proprietary database. It states its platform is used by sellers across more than 600,000 companies. The exact current contact count is not published on its pricing page as of this check. Clay does not maintain its own primary database in the same way. It orchestrates data from more than 150 third-party providers and lets you choose which sources to pull from per field. That is a different model from owning one dataset outright.