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Apollo vs Clay - Comparison 2025

Apollo vs. Clay

Last updated on

Reviewed by Paddy Stobbs

Stackfix Co-Founder & CEO

PS

Apollo and Clay are two very different products at the very forefront of the lead generation market. With Apollo excelling as an all-in-one solution for sales teams needing both prospecting and engagement capabilities, particularly suited for US-focused businesses with high prospecting volume.

Clay, on the other hand, stands out as a superior data enrichment platform with exceptional AI capabilities and customization options, better suited for teams requiring comprehensive and accurate prospect data who already have engagement tools in place. Apollo's strength lies in its integrated outbound capabilities and broad feature set, while Clay's power comes from its ability to synthesize data from multiple sources and superior AI-driven enrichment capabilities.

Apollo Product Logo

Advantages of Apollo

Apollo is significantly better at outbound engagement
Apollo offers a comprehensive outbound sequencing feature with advanced capabilities like A/B testing and multi-channel sequences, while Clay lacks any native outbound functionality. This makes Apollo particularly valuable for sales teams needing an all-in-one solution for both prospecting and engagement.
Apollo offers more comprehensive API access
Apollo provides a well-documented API for custom integration development, while Clay lacks API access. This makes Apollo more suitable for enterprises requiring custom workflow development.
Apollo provides better compliance coverage (for now)

Apollo offers more comprehensive compliance certifications including ISO 27001, while Clay lacks some key certifications. This makes Apollo more suitable for enterprise customers with strict compliance requirements.

Clay Product Logo

Advantages of Clay

Clay offers better customer support experience
Clay provides superior customer support with an exceptionally helpful AI chatbot and quick handoff to human agents, while Apollo offers more standard support channels. Clay's extensive help center is particularly noteworthy compared to Apollo's basic documentation.
Clay's AI enrichment capabilities are superior
Clay's AI agent demonstrates exceptional accuracy in web scraping and data enrichment tasks, even for non-standard fields, while Apollo's AI features are more basic. This makes Clay particularly valuable for teams needing unique or specialized data points about prospects.
Clay is significantly more customizable for data enrichment
Clay's ability to integrate with dozens of data providers and add custom columns for any data point sets it apart from Apollo. While Apollo offers basic customization, Clay's spreadsheet-first approach allows teams to enrich leads with virtually any data point imaginable, whether from integrated databases or web scraping.

Apollo is best for

  • Businesses with high prospecting volume (1000-5000 leads per month)
  • Who need granular prospecting capabilities and verified email data with 91% accuracy
  • And/or who want integrated email sequencing with A/B testing and multi-channel outreach capabilities

Clay is best for

  • Businesses with high prospecting volume (1000-5000 leads per month)
  • Who need advanced data enrichment capabilities and want to synthesize data from multiple providers
  • And/or who want flexible list building in a spreadsheet interface and need custom field enrichment via AI

Apollo is less good for

  • Businesses with a low prospecting volume (50-200 leads per month)
  • Who need deep contact data coverage outside of the US market
  • And/or who just need basic contact verification without advanced engagement features

Clay is less good for

  • Businesses with low prospecting volume (50-200 leads per month)
  • Who need an all-in-one sales engagement platform with built-in email sequencing and CRM functionality
  • And/or who don't have any customization needs

Gallery

Apollo logoApollo
Apollo screenshot
Clay logoClay

Pricing, features & ratings

Apollo logo

Apollo

Starting at

$0

Billed monthly

Pricing calculatorVisit Website
Clay logo

Clay

Starting at

$0

Billed monthly

Pricing calculatorVisit Website
Stackfix Verdict
Functionality
9

Functionality

9/10

<p>As a lead generation platform, Apollo is mature, rounded and feature rich. It covers the basics well - including a large contact database, strong email verification and granular prospecting and lead scoring tooling.</p><p>Additionally, its adjacent functionalities are also well executed. For example, its outbound sequencing feature is powerful and well integrated. Additionally, small AI touches are well dispersed across the platform - such as a native call transcription and summarisation bot for prospect meetings.</p>
7

Functionality

7/10

<p>Clay is not your typical lead generation tool. <span style="color: rgb(0, 0, 0);">Instead of using one proprietary database, Clay integrates with dozens of underlying providers (such as Apollo, Hunter, RocketReach etc.) to allow you to pick and choose the best data from almost anywhere. Its spreadsheets and tables focused interface shines when it comes to list building and enrichment tasks in particular. Additionally, when tested, we find its AI features to be well executed and sprinkled in all the right places.</span></p><p><span style="color: rgb(0, 0, 0);">However, Clay does not provide any kind of outbound or CRM style functionality meaning you'll still need to pay for dedicated tooling in these spaces separately. </span></p>
Ease of Use
7

Ease of Use

7/10

<p><span style="color: rgb(0, 0, 0);">Apollo's web app is intuitive and easy to navigate. Additionally, its onboarding was simple and not overwhelming. It's core prospecting interfaces are familiar amongst competitors making it easy to pick up. It would take an average SMB employee less than 30 minutes to master its use.</span></p>
7

Ease of Use

7/10

<p>Clay's web app is superbly designed and intuitive to use. If you're use to working with Excel and Google Sheets for your prospecting work, you'll feel right at home. That being said, the sheer depth of features may initially feel daunting and take some time to make the most of. It would take an average SMB employee an hour to master the platforms use.</p>
Look and feel
7

Look and feel

7/10

<p>Apollo's web app is relatively simple and easy to navigate. Additionally, when tested, we find it's search pages were generally fast to load.</p><p>However, given its feature richness some views were cramped and overflowing with information. For example, its company profile view is cluttered with valuable information like recent news flow hidden in unintuitive areas.</p>
8

Look and feel

8/10

<p>Clay's web app is modern, minimalist and well designed. When tested, we find its pages are very fast to load and whenever there are tasks that take some time to complete (e.g. AI agents doing web scraping), Clay's interface is clear and handles these scenarios well.</p>
Customisability
7

Customisability

7/10

<p>There are a number of ways to customise your experience with Apollo, including basic channels such as creating custom lists, custom searches (which you can share with team mates) and defining criteria for lead scoring. There are also some deeper levels which you can customise such as providing the platform with context about your business and what you are selling - this information will then be used by their AI when drafting email sequences for example.</p>
10

Customisability

10/10

<p>Clay is deeply customisable on a number of fronts. The primary channel is via its primary enrichment interface. The ability to add custom columns to tables to enrich lead lists with almost any datapoint you can imagine, is immensely powerful. Additionally, if a datapoint you're looking for is not natively integrated with Clay or cannot be scraped by its web agent, you can also take advantage of any external APIs with ease.</p>
Ease of Setup
6

Ease of Setup

6/10

<p>Unlike many of similar products of this scale, Apollo offers a simple, self-serve free trial for their platform. When tested, we found the initial setup to be simple (taking &lt;10 mins). However, given then feature breadth that Apollo offers, it can take a lot of time to fully customize the experience. For example - most customers will still need to connect CRMs and customize Apollo's AI 'power-ups' to suit their needs.</p>
6

Ease of Setup

6/10

<p>Clay offers a self-serve free trial for their platform. Initial set up can be a little confusing though, given the novelty of their spreadsheets style user interface (taking &gt;15 minutes). However, their help centre and 'university' guidance centre is particularly well crafted which eases the burden in terms of getting the most out of the platform.</p>
Customer Support
8

Customer Support

8/10

<p>You can contact a support agent via a live chat widget inside Apollo's web app. When tested, we find agents to be helpful and about to troubleshoot technical questions often in the first response.</p><p>Additionally, Apollo provides a detailed help centre which was able to answer almost all basic question we had in testing.</p>
9

Customer Support

9/10

<p><span style="color: rgb(0, 0, 0);">The primary channel for support in Clay is via a chat widget inside their web app. The initial chat will be with an AI chatbot instead of a real agent. When tested, we find this AI chatbot to be one of the most helpful on the market, being able to answer most questions we had. When it failed, it readily handed off to a real agent in less than one hour who was able to handle more complex queries via email. Additionally, we find Clay's resources and help centre to be one of the richest and easiest to consume on the market.</span></p>
Integratability
9

Integratability

9/10

<p>Apollo offers a large range of native integrations built by either them or their partners. These include ones with<span style="color: rgb(0, 0, 0);"> popular CRMs (Salesforce, Hubspot), sales engagement platforms (Outreach, Salesloft), email clients (Gmail, Outlook) and automation platforms like Zapier. </span></p>
10

Integratability

10/10

<p>Clay natively integrates with dozens of products and lead generation databases to give users a broad array of data to enrich their leads with. <span style="color: rgb(0, 0, 0);">Additionally, if a datapoint you're looking for is not natively integrated with Clay or cannot be scraped by its web agent, you can also take advantage of any external APIs with ease.</span></p><p>Additionally, Clay integrates natively with most popular CRMs and sales engagement platforms too.</p>
Ease of Migration
6

Ease of Migration

6/10

<p><span style="color: rgb(0, 0, 0);">Apollo offers self-serve export functionality for contacts directly within their web app. High export limits are also available for larger enterprises depending on what plan you are on.</span></p><p><span style="color: rgb(0, 0, 0);">Additionally, Apollo offers a well-documented API through which businesses are able to interact with their database directly.</span></p>
8

Ease of Migration

8/10

<p>Clay provides self-serve export functionality within its web app. It's particularly well suited to exporting data into the CSV format given the native tablular format of data in Clay itself. Clay allows you to export all kinds of tables, including custom columns and web scraped enrichment data too.</p>
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