Clay vs Apollo.io

Comprehensive side-by-side comparison — features, pricing, performance, and more.

Updated August 2026

Clay

Build systems to grow revenue

Freemium

79% verification coverage

Apollo.io

AI sales platform — outbound, inbound & data enrichment

Freemium

78% verification coverage

Trust & Reliability

Clay

Uptime:100.00% (30-day)Status page

Users:10K-100K

Customers (per vendor):Intercom

GDPR

SOC 2

Apollo.io

Users:1M-10M

Customers (per vendor):Customer.io, GTM Ops, Census +7

GDPR

SOC 2

Too Close to Call

Clay (7.3) vs Apollo.io (7.2) — difference of 0.1 points

Scores are AI-estimated from publicly available data — not an independent test or a verified user rating. How we rank →

AI Comparison Summary

Clay

7.3

avg score

Apollo.io

7.2

avg score

Both tools score very similarly overall — the best choice depends on your specific priorities.

Based on 12 dimensions

Scores are AI-estimated from publicly available data — not an independent test or a verified user rating. How we rank →

Too close to call — it's a tie

Clay

Best For

GTM operations teams needing to centralize data and automate complex sales workflows

Sales development representatives (SDRs) looking to streamline prospecting and personalize outreach

Marketing teams aiming to build targeted ad audiences and automate inbound qualification

Revenue operations leaders focused on improving data quality and pipeline efficiency

Consider Alternatives If

Individuals or teams not focused on sales, marketing, or GTM operations

Users seeking a simple, single-purpose AI tool without workflow orchestration needs

Organizations that require full data retention for actions beyond the billing cycle

Apollo.io

Best For

Sales development teams looking to automate prospecting and outreach at scale

Account executives aiming to accelerate deal cycles with AI-powered insights

Revenue operations professionals seeking to unify their GTM tech stack and improve data accuracy

Founders and sales leaders focused on driving smarter, faster revenue growth

Consider Alternatives If

Individuals or teams not focused on B2B sales or lead generation

Users who require a completely free solution with no feature limitations

Businesses that do not need extensive contact data or sales automation

* Verdict is based on our algorithmic scoring of publicly available data. Learn about our methodology

Clay is best for

🤖Automation & Agents8.0📊Data & Analytics7.0💬Chat & Conversation5.0

Apollo.io is best for

🤖Automation & Agents9.0📊Data & Analytics8.0💬Chat & Conversation7.0

Filter by your use case:

Pros & Cons

Clay

Pros

Comprehensive data marketplace with 200+ providers
AI agents for custom research and qualification
Flexible workflow orchestration across GTM tools
Automates lead enrichment and personalization
Offers a free plan with no credit card required
SOC 2 Type II, GDPR, CCPA, ISO 27001, and ISO 42001 compliant

Cons

Actions reset each billing cycle and do not roll over on paid plans
Data Credits roll over only up to 2x monthly amount for Launch/Growth plans
Enterprise plan requires custom pricing and annual commitment
Variable AI model pricing can make cost prediction challenging
No explicit mention of offline mode for the platform

Apollo.io

Pros

Comprehensive B2B database with 240M+ contacts and 30M+ companies
AI-powered features for prospecting, outreach, and deal management
All-in-one platform replaces multiple sales tools, reducing costs
Strong CRM integrations with Salesforce and HubSpot
Flexible pricing plans including a generous free tier
High email accuracy (96%) and deliverability tools

Cons

Free plan has limited AI Assistant chats and sequences
Non-Gmail/Microsoft email accounts require a paid plan for full integration
Credit system for data access can be complex to manage for new users
Advanced features like A/Z testing and unlimited mailboxes are only available on higher tiers
International dialer is an add-on and varies by region

Weighted Score — Adjust What Matters to You

Pick a profile or drag sliders — scores and radar update instantly on the right.

Quick profiles:

Ease of Use5

Output Quality5

Value for Money5

Customization5

Support5

Integration5

Accuracy & Reliability5

Compliance & Data Protection5

Performance5

Task Completion5

Tool Use Correctness5

Planning Quality5

Dimension Comparison

Clay

7.3

/ 10

Your pick

Apollo.io

7.2

/ 10

Dimension Breakdown

Ease of Use

How intuitive is onboarding, UI navigation, and day-to-day usage for the target audience?

Clay

6.0

Apollo.io

6.0

Output Quality

How accurate, reliable, and useful are the outputs this product generates?

Clay

8.0

Apollo.io

8.0

Value for Money

How well does the pricing match the features and output quality delivered?

Clay

7.0

Apollo.io

8.0▲ +1.0

Customization

Calculated

How much can users tailor workflows, settings, prompts, or outputs to their needs?

Clay

8.0▲ +1.0

Apollo.io

7.0

Support

How strong is the documentation, customer support, community, and learning resources?

Clay

8.0▲ +1.0

Apollo.io

7.0

Integration

Calculated

How well does it connect with other tools, APIs, and workflows?

Clay

8.0

Apollo.io

8.0

Accuracy & Reliability

Factual accuracy and hallucination resistance

Clay

8.0

Apollo.io

8.0

Compliance & Data Protection

Calculated

Compliance certifications and data-protection posture, aggregated from verified compliance signals

Clay

5.0

Apollo.io

5.0

Performance

Calculated

Latency + throughput speed

Clay

8.0

Apollo.io

8.0

Task Completion

End-to-end task success rate

Clay

—

Apollo.io

—

Tool Use Correctness

Picks the correct tool + correct arguments

Clay

—

Apollo.io

—

Planning Quality

Calculated

Multi-step planning depth + replanning capability

Clay

—

Apollo.io

—

Calculated = derived from structured signals (integration count, API/open-source config, compliance certs, response-time). AI = LLM-assessed from public website content. Methodology

Task Performance

Clay

Task

Apollo.io

7.0

Lead Scoring

7.0

Pipeline Management

8.0

Outreach Automation

9.0

6.0

Email Tracking

8.0

5.0

Meeting Scheduling

7.0

6.0

Deal Forecasting

6.0

9.0

Contact Enrichment

9.0

5.0

Conversation Intelligence

7.0

Territory Management

5.0

7.0

Reporting Analytics

8.0

* Task scores (1–10) are algorithmically generated from publicly available data.

Data is sourced from public information and vendor websites. It may not always be up-to-date — verify pricing and features directly with the vendor before purchasing.Report inaccuracy

Frequently Asked Questions

Which is better, Clay or Apollo.io?

Both are strong options. Clay is a strong choice, while Apollo.io is a strong choice. The best choice depends on your specific use case, budget, and workflow requirements.

Is Clay cheaper than Apollo.io?

Clay starts at free (freemium model) with a free trial. Apollo.io starts at free (freemium model). Use the Cost Calculator above for a detailed estimate.

What are the main differences between Clay and Apollo.io?

Clay — "Build systems to grow revenue". Apollo.io — "AI sales platform — outbound, inbound & data enrichment". Key differences include their pricing models, platform support, integrations, and technical capabilities. See the Feature Comparison table above for a complete side-by-side breakdown.

Can I use Clay and Apollo.io together?

Yes, many teams use both tools together for different purposes. Use the Stack Builder section above to combine Clay and Apollo.io with other tools and save your AI toolkit.

Does Clay or Apollo.io have a free plan?

Clay is available for free with a free trial. Apollo.io is available for free. Always verify current pricing directly with the vendor.

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