Clay vs Apollo

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

Clay

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Sales & Marketing AI

Advanced AI-powered sales prospecting and data enrichment platform that automates lead research, prospect discovery, and personalized outreach at scale.

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Starting Price

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

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

Custom

Feature Comparison

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FeatureClayApollo
CategorySales & Marketing AISales & Marketing AI
Pricing Plans8 tiers8 tiers
Starting PriceFree (14-day Pro trial); paid plans from $149/month
Key Features
  • Claygent AI research agents
  • Sculptor no-code workflow builder
  • Signals trigger tracking
  • 265M+ B2B contact database
  • AI-powered prospect discovery
  • Multi-channel sequence automation

Clay - Pros & Cons

Pros

  • Waterfall enrichment across 150+ premium data sources delivers significantly higher enrichment rates than single-vendor solutions—Anthropic's sales operations team has described improving their enrichment rate by approximately 2x after switching to Clay (as referenced on Clay's customer page)
  • Claygent AI agents autonomously research prospects with human-like depth—visiting sites, parsing job posts, and synthesizing insights at machine speed
  • Highly rated on G2 (approximately 4.9/5 based on 200+ reviews as of early 2026) with proven adoption at well-known companies including OpenAI, Anthropic, Intercom, Rippling, Verkada, and Vanta
  • Sculptor no-code workflow builder enables RevOps teams to ship complex multi-step automations without engineering support
  • Native ad sync to LinkedIn, Meta, and Google turns enriched audiences into coordinated multi-channel campaigns
  • 14-day Pro trial with no credit card required lowers the evaluation barrier compared to enterprise data vendors with annual contracts

Cons

  • Credit-based pricing can become expensive quickly when running waterfall enrichments or AI agents across large lists, and forecasting monthly spend requires careful workflow design
  • Steep learning curve for advanced workflows — getting full value typically requires a dedicated RevOps owner or hiring a Clay-certified consultant
  • Claygent and large enrichment runs can be slow on big tables (thousands of rows), and long-running jobs occasionally need manual restarts
  • Data accuracy still depends on underlying providers; even with waterfall logic, mobile numbers and personal emails have lower hit rates than business contacts
  • Lacks the deep multi-channel sequencing, dialer, and conversation analytics found in dedicated sales engagement platforms, so most teams still pair Clay with Outreach, Salesloft, or Smartlead

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.

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🔒 Security & Compliance Comparison

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Security FeatureClayApollo
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 ResidencyUS (primary)
Data RetentionCustomer data retained for duration of contract; deleted within 90 days of account termination upon request
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