Apollo vs Clay

Detailed side-by-side comparison to help you choose the right tool

Apollo

Sales & Marketing AI

Apollo combines a 265M+ B2B contact database with AI-powered prospecting, multi-channel sequence automation, and revenue analytics to accelerate sales development from lead discovery through closed deals.

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Starting Price

$0

Clay

🟡Low Code

Sales Intelligence

A GTM data platform that combines 100+ enrichment sources with AI research agents to build hyper-personalised outbound campaigns at scale.

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Starting Price

Free (14-day Pro trial); paid plans from $149/month

Feature Comparison

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FeatureApolloClay
CategorySales & Marketing AISales Intelligence
Pricing Plans5 listed plans5 listed plans
Starting Price$0Free (14-day Pro trial); paid plans from $149/month
Key Features
  • • 265M+ B2B contact database
  • • AI-powered prospect discovery
  • • Multi-channel sequence automation
  • • Claygent AI research agents
  • • Sculptor no-code workflow builder
  • • Signals trigger tracking

Apollo - Pros & Cons

Pros

  • ✓Massive contact database of 265M+ verified B2B contacts with 65+ filter attributes, reducing the need for a separate data vendor like ZoomInfo or Lusha.
  • ✓All-in-one platform consolidating prospecting, email/phone/LinkedIn sequencing, dialer, meeting scheduler, and analytics, so teams can retire multiple point tools.
  • ✓Genuinely useful free tier with unlimited email credits and basic sequences, making it practical for solo founders and early-stage SDRs to actually test the product.
  • ✓Strong native integrations with Salesforce, HubSpot, Gmail, Outlook, LinkedIn, and Slack, plus a widely-used Chrome extension for prospecting from any webpage.
  • ✓AI features (email writer, deal assistant, power-ups, intent scoring) are bundled into standard plans rather than locked behind expensive add-on SKUs.
  • ✓Per-seat pricing with monthly billing available is significantly cheaper than enterprise competitors, with published rates instead of forced sales calls.

Cons

  • ✗Data accuracy is inconsistent for senior executives, smaller companies, and non-US regions, where bounce rates and outdated titles are noticeably higher than premium providers.
  • ✗Email deliverability can suffer at scale if sequences aren't carefully warmed up and throttled, and Apollo's own sending reputation has drawn spam complaints in some industries.
  • ✗The interface bundles so many features that new users face a steep learning curve, and advanced workflow and enrichment features require meaningful configuration time.
  • ✗Credit and export limits on lower tiers can be restrictive for high-volume outbound teams, pushing real users onto Organization or Unlimited plans faster than expected.
  • ✗Support response times on lower-tier plans are slow, with chat and ticket-only access and no dedicated CSM until higher-paid tiers.

Clay - Pros & Cons

Pros

  • ✓Waterfall enrichment can improve coverage across multiple data vendors
  • ✓Claygent handles custom web research that fixed databases often miss
  • ✓Spreadsheet interface makes enrichment logic visible to operators
  • ✓Connectors cover HubSpot, Salesforce, Outreach, Salesloft, Attio, Instantly, and Smartlead

Cons

  • ✗Credit economics can be difficult to forecast without a controlled pilot
  • ✗Complex tables can become brittle when many providers and formulas are chained
  • ✗AI-written personalization still requires review for inaccurate claims
  • ✗Teams must manage privacy, lawful basis, opt-outs, and CRM data hygiene

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🔒 Security & Compliance Comparison

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Security FeatureApolloClay
SOC2—✅ Yes
GDPR—✅ Yes
HIPAA—❌ No
SSO—✅ Yes
Self-Hosted—❌ No
On-Prem—❌ No
RBAC—✅ Yes
Audit Log—✅ Yes
Open Source—❌ No
API Key Auth—✅ Yes
Encryption at Rest—✅ Yes
Encryption in Transit—✅ Yes
Data Residency—US (primary)
Data Retention—Customer data retained for duration of contract; deleted within 90 days of account termination upon request
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