Apollo vs Kaspr: Comparing B2B Prospecting Tools

Choosing between Apollo and Kaspr for your B2B prospecting often comes down to five questions:

• Are you prospecting primarily in Europe, or do you need global coverage that holds up in enterprise deals across multiple regions?

• Do you need a full outbound platform with sequences, dialing, and workflow automation, or just accurate contact data layered on top of LinkedIn?

• Is your team five people or fifty? Are you scaling toward enterprise, or staying lean and SMB-focused?

• How important are intent signals that know when an account is in-market, or is contact data alone enough to guide your outreach?

• Do you need your data platform to work inside your CRM, your AI agents, and your entire marketing and RevOps stack, or is a Chrome extension and a CRM push enough?

In short, here is what we recommend:

Apollo is the all-in-one sales platform for teams that want prospecting data, multichannel outreach, and deal management in a single tool. Its 230M+ contact database, built-in sequences, parallel dialer, and AI-generated emails let SDRs run entire campaigns without leaving the platform. A free tier and plans starting at $49/seat/month make it accessible to startups and mid-market teams. The tradeoff: Apollo's CRM and deal management features are less mature than dedicated tools, its credit system grows complex at scale, and international data coverage -- particularly outside the US -- is uneven.

Kaspr is the LinkedIn-native contact data tool for individual contributors and small teams prospecting in Europe. Its Chrome Extension surfaces phone numbers and emails directly on LinkedIn profiles, Sales Navigator lists, event attendees, and post engagers, drawing from a database of 200M+ European B2B contacts backed by parent company Cognism. With a free plan and paid tiers starting at $49/user/month, Kaspr gets you to a direct-dial number fast. But it stops there. No sequences, no dialer, no deal management, no intent data unless you're on Enterprise. Teams that need more than contact extraction will need a separate outreach and CRM stack.

Apollo and Kaspr each solve part of the B2B prospecting problem. Apollo bundles data and engagement at the cost of depth. Kaspr goes deep on European LinkedIn data at the cost of everything else. But for teams that need the full picture -- comprehensive data, intent signals that show when accounts are ready to buy, and AI that connects the dots across your deals -- there's a third platform worth considering.

ZoomInfo is an all-in-one AI GTM Platform built on the largest B2B data foundation in the industry: 500M contacts, 100M companies, 135M+ verified phone numbers, and 200M+ verified business email addresses. That data fuels the GTM Context Graph, an intelligence layer that processes 1.5B+ data points daily by combining your CRM records, conversation transcripts, and behavioral signals with ZoomInfo's B2B data to capture not just what's happening in your deals, but why. Sales teams use this intelligence through GTM Workspace (an AI-powered seller workspace), marketers and RevOps build plays in GTM Studio, and developers plug the same intelligence into any tool via APIs and MCP server. For organizations that have outgrown point solutions and need data, intelligence, and execution in one place, ZoomInfo is what Apollo and Kaspr are building toward.

See what ZoomInfo's all-in-one AI GTM Platform looks like in action -- start a free trial.

Apollo vs. Kaspr vs. ZoomInfo at a glance

Apollo is the all-in-one generalist. Kaspr is the European LinkedIn specialist.

Apollo and Kaspr solve different problems for different buyers. Understanding this distinction matters more than any feature comparison.

Apollo (G2: 4.8/5 from 7,142 reviews) wants to be your entire sales stack.

It starts with a contact database, then adds multichannel sequences (email, phone, LinkedIn steps), a parallel dialer that claims reps can connect with 100+ prospects per hour, conversation recording, deal management boards, and workflow automation. The pitch is consolidation: one platform instead of five. Census replaced ZoomInfo and Outreach with Apollo and reportedly cut costs.

The breadth is real.

But breadth and depth rarely coexist in the same tool at the same price. Apollo's CRM and deal management work but are less mature than Salesforce or HubSpot. Its dialer works but costs an additional $119-$149/month for advanced features. Its conversation intelligence records calls but lacks the patent-backed analysis of dedicated tools.

Kaspr (G2: 4.4/5 from 600+ reviews) makes no attempt at breadth.

It does one thing: extract European B2B contact data from LinkedIn. The Chrome Extension appears as a widget on LinkedIn profiles, search results, Sales Navigator lists, event attendees, and post engagers. Click to reveal a phone number or email. Push it to your CRM. That's the workflow.

This narrow focus produces real advantages.

Multiple customers report Kaspr finding European mobile numbers that competitors like Lusha, ZoomInfo, and RocketReach miss. The extension's credit-conditional enrichment -- you can require a phone number to be found before a credit is spent -- prevents waste. And the interface is simple: one customer noted "I didn't have to be trained on how to use Kaspr."

But Kaspr's specialization means you need other tools for everything else. No sequences. No dialer. No deal tracking. No AI. If you're an SDR who lives in LinkedIn and just needs phone numbers, this works. If you're building a sales operation, Kaspr is one piece of a larger puzzle.

ZoomInfo enters the picture from a different direction. While Apollo tries to bundle outreach and data into one affordable platform and Kaspr focuses narrowly on extracting contact data from LinkedIn, ZoomInfo positions itself as the intelligence layer behind an entire go-to-market operation. Rather than replacing every tool like Apollo or acting as a single data source like Kaspr, ZoomInfo focuses on providing the data, intent signals, and contextual intelligence that power sales, marketing, and RevOps workflows across an organization.

Data coverage and verification: US-focused, EU-focused, or both?

The database size comparison is misleading without geographic context -- and verification methodology matters as much as raw contact count.

Apollo's 230M+ contacts and 70M companies are strongest in the US market.

The platform advises prospects to sign up for a free account and run a quick search by region rather than publishing coverage by geography -- an honest acknowledgment that international coverage varies. Apollo verifies email accuracy through a 7-step process, claiming 97% email accuracy with 72M emails verified monthly. For US-based outbound teams, Apollo's data is solid. For teams selling into Europe or APAC, test before committing.

Kaspr's 200M+ European B2B contacts tell the opposite story.

The database was built for European markets, with roots in France and hubs in the UK and Spain. Since Cognism's acquisition in April 2022, Kaspr's data has merged with Cognism's, producing what Cognism described as "nearly 30% more mobile coverage in key markets." Kaspr verifies data against 120 sources at request time -- not pre-stored verification. For European prospecting, this focus delivers measurably better results. Cloud Direct's SDR Manager reported that a previous provider pulled "American numbers when it was a UK-based person" -- a problem Kaspr solved.

ZoomInfo operates at a different scale: 500M contacts across 100M companies, with 34M+ company profiles outside North America, 200M+ professional profiles outside NA, and 45M+ mobile numbers outside NA.

In 2025 alone, ZoomInfo added 1.8 million international mobile numbers across six European markets -- a direct response to enterprise demand for EU coverage that doesn't require a separate data passport. The data is verified through a multi-source pipeline with 300+ human researchers and up to 95% accuracy on first-party data.

In a Fortune 500 competitive RFP analyzing 25 million contacts across vendors, the independent consultant concluded that "no other competitor came even close." That kind of validation matters when your outbound depends on reaching the right person at the right number.

Intent signals: generic topics, no signals, or intelligence tied to your wins

Knowing who to contact is half the problem. Knowing when they're ready to buy is the other half.

Apollo includes buying intent data on all plans, covering over 1,600 intent topics through a partnership with LeadSift (a Foundry company). For a platform at Apollo's price point, this is notable. The intent signals help SDRs prioritize accounts that are actively researching relevant solutions rather than cold-calling through an alphabetical list.

Kaspr offers intent data only on its Enterprise plan. For the majority of Kaspr's users on Free, Starter, or Business plans, there are no intent signals. Prospecting means identifying contacts and hoping the timing is right.

ZoomInfo treats intent as a core intelligence layer, not an add-on. ZoomInfo Intent tracks signals from 210 million IP-to-Organization pairings and 6 trillion+ new keyword-to-device pairings sourced monthly. More importantly, Guided Intent identifies topics historically correlated with deal success based on your CRM data -- rather than requiring you to pick keywords manually and hope they match buying behavior.

ZoomInfo Guided Intent identifies the specific research topics correlated with your closed-won deals, then surfaces accounts that match that pattern in real time. Apollo and Kaspr (at Enterprise) can tell you a company is researching a topic. ZoomInfo can tell you the topic correlates with your historical wins and the company fits the pattern behind your best customers.

Seismic attributed 39% of active pipeline to opportunities identified or influenced by ZoomInfo signals -- a result that depends on Guided Intent routing the right contacts to reps at the right moment, not on email drafting assistance.

Outbound execution: all-in-one bundle, data-only, or signal-to-action at scale

Apollo offers the most complete outreach toolkit of the three.

Sequences support email, phone, LinkedIn steps, and custom tasks, with A/B testing and AI-assisted copy generation. The Workflow Engine adds visual drag-and-drop automation with conditional branching. Users who adopt Workflows report booking 2.5x more meetings. Email deliverability tools include domain purchase, automatic SPF/DKIM/DMARC setup, and mailbox warm-up.

For teams that need data and outreach in one place without enterprise budgets, this is Apollo's strongest argument.

Kaspr has no native outreach.

Enriched contacts get pushed to Lemlist (email sequences), Aircall or Ringover (dialing), or a CRM. This keeps Kaspr simple, but it means managing and paying for multiple tools. The total cost of Kaspr plus a sequencing tool plus a dialer can quickly exceed what Apollo charges for everything bundled.

ZoomInfo approaches outreach differently. Rather than building a standalone sequencer, ZoomInfo's partnership with Salesloft connects buying signals directly into Salesloft's engagement engine.

ZoomInfo Buying Signals sync to Salesloft Rhythm for AI-prioritized outreach -- SDRs receive the right account to contact at the moment it enters research mode, not after manually checking a keyword list. GTM Studio lets marketers and RevOps launch multi-channel plays (email, calls, ads, direct mail) triggered by buyer behavior, and GTM Workspace delivers AI-drafted outreach to sellers based on full account context. The goal is signal-to-action: the right message reaches the right buyer when they start researching, not when an SDR happens to check a list.

For a detailed breakdown of Apollo's standalone pricing and plan features, see the Apollo pricing analysis.

AI capability: email assistant, zero AI, or deal intelligence engine

The three platforms occupy entirely different positions on the AI spectrum.

Apollo has invested heavily in AI.

Its AI sales assistant generates personalized email copy, builds prospect lists from natural language prompts, summarizes calls, and auto-updates CRM fields. The AI platform grew 500% year-over-year with over 50,000 weekly active users. For mid-market teams, this is useful automation that saves time on repetitive tasks.

Kaspr has no AI features.

The product is manual: find a profile, click to reveal, export to CRM. For a tool focused on contact extraction, this is not necessarily a flaw. But it means Kaspr cannot help with prioritization, personalization, or automation.

ZoomInfo's AI operates at a different level because it rests on a different foundation.

The GTM Context Graph does not just generate emails from contact data. It combines CRM records, conversation transcripts, intent signals, and engagement history to understand why deals move or stall. As ZoomInfo's CPO Dominik Facher writes: "The CRM recorded the state change. It has no record of why it happened." The GTM Context Graph captures that "why" (processing 1.5B+ data points daily) and makes it available to AI agents in GTM Workspace and GTM Studio.

The practical difference: Apollo's AI helps you write a better cold email. ZoomInfo's AI tells you which accounts to contact, why they're likely to buy now, what concerns to address based on conversation history, and whether the deal pattern matches your historical wins.

Seismic reported 54% more productive reps and 11.5 hours saved per rep per week after deploying ZoomInfo's signal layer -- not from email drafting assistance, but from eliminating research time through contextual intelligence.

Pricing models reflect different target markets

Apollo uses a per-seat plus credit-consumption model:

• Free: $0, 900 credits/year (granted monthly), basic filters, 1 intent topic, 25 record selection, 5K AI words/month, 250 daily emails, 1 mailbox, 2 sequences/team

• Basic: $49/seat/month (annual)

• Professional: $79/seat/month (annual), adds data enrichment and unlimited sequences

• Organization: $119/seat/month, minimum 3 seats

Credits do not roll over. The Fair Use Policy caps "Unlimited" plans at the lesser of ($Paid / $0.025) or 1 million credits per year. API access requires the Custom plan. The advanced dialer adds $119-$149/month.

Kaspr uses a credit-based, per-seat model with separate credit types for B2B emails, phone numbers, direct emails, and exports:

• Free: $0, 5 phone credits/month, 15 B2B email credits/month

• Starter: $49/user/month (annual), unlimited B2B emails, 1,200 phone credits/year

• Business: $79/user/month (annual), 2,400 phone credits/year

• Enterprise: Custom (minimum 5 users, annual only)

Kaspr's "unlimited" B2B emails carry a fair-use cap of 10,000 per account per month. Phone credit add-ons range from $0.023 to $0.036 per credit depending on volume. Export credits are charged every time a lead is exported, not just the first time. One advantage over Apollo: Kaspr credits roll over on paid plans.

ZoomInfo uses custom-quoted, consumption-based subscriptions with no publicly listed prices. The free ZoomInfo Lite tier provides permanent access with 10 monthly export credits, and a free trial of the full platform is available. ZoomInfo pricing is consumption-based rather than fixed-tier -- the canonical starting point is free, with paid access scaling by credit usage, not seat tiers.

ZoomInfo costs more, and that reflects a different proposition.

You are not paying for a contact database with outreach bolted on (Apollo) or a LinkedIn extraction tool (Kaspr). You are paying for the largest B2B dataset, the GTM Context Graph intelligence layer, and tools that work across your entire GTM operation. For teams where a single qualified enterprise deal covers the annual cost, the math works differently than for an SDR running high-volume cold outreach at $49/month.

Security and compliance diverge sharply

This matters more than most comparison articles acknowledge, particularly for enterprise procurement.

Apollo holds ISO 27001 and SOC 2 Type 2 certifications, is GDPR compliant, and maintains a Trust Center with documented subprocessors and penetration testing. Infrastructure runs on Amazon Web Services. For mid-market teams, this is adequate.

Kaspr discloses no third-party security certifications (no SOC 2, no ISO 27001) on any official page.

GDPR processing operates under legitimate interest, and data is stored on OVH in France with AWS backup. SSO is Enterprise-only. For individual contributors and small teams in Europe, the GDPR alignment and French hosting may suffice. For enterprise procurement teams running vendor security assessments, the absence of third-party certifications is a gap.

ZoomInfo maintains the broadest compliance stack: ISO 27001, ISO 27701, SOC 2 Type II, TRUSTe GDPR Practices, and TRUSTe CCPA Practices, all renewed annually. ZoomInfo is a registered data broker in California and Vermont. For regulated industries (financial services, healthcare, government-adjacent), ZoomInfo clears security reviews that neither Apollo nor Kaspr can match without additional documentation.

The integration question: self-contained vs. connected

Apollo integrates natively with Salesforce, HubSpot, and Pipedrive and connects to Outreach, Salesloft, Marketo, Sendgrid, and LinkedIn.

The philosophy: you should not need many integrations because Apollo replaces most tools. This works until you need something Apollo does not do well (advanced CRM workflows, enterprise marketing automation, specialized analytics), at which point API access requires a Custom plan.

Kaspr offers nine native integrations: HubSpot, Salesforce, Pipedrive, Zoho CRM, Lemlist, Brevo, Aircall, Ringover, and Zapier. All except Zapier are available on the free plan. The integrations are outbound only (Kaspr pushes data out; nothing pushes back in). No webhook support. No Make/Integromat. API access is available only upon request with rate limits of 20 requests/hour on Starter.

ZoomInfo's App Marketplace lists 120+ partner integrations, with connections to Salesforce, HubSpot, Microsoft Dynamics, Snowflake, and major marketing automation platforms.

More importantly, ZoomInfo's Enterprise API and MCP server let any application or AI agent consume the same data and intelligence. API access is included in all relevant plans. A large financial services firm built an internal app using ZoomInfo's MCP server, and CEO Schuck described it as "a surface area we would never see before."

The architectural point: ZoomInfo treats itself as infrastructure that powers any front-end. Apollo treats itself as the front-end that replaces everything. Kaspr treats itself as a data feeder into other tools. Which approach fits depends on whether you want one tool, your own stack, or intelligence that flows everywhere.

Apollo vs. Kaspr vs. ZoomInfo: Which should you choose?

The right platform depends on your team's size, geography, and ambition.

Choose Apollo if:

• You want prospecting data and multichannel outreach in one platform

• Your team is primarily US-focused with some international coverage needs

• You're a startup or mid-market company consolidating a fragmented tool stack

• You value a self-serve free tier and affordable paid plans

• Built-in AI email writing and workflow automation matter to your daily workflow

• You need intent data included on every plan without an Enterprise commitment

Start with Apollo's free plan and test the data against your ICP before committing.

Choose Kaspr if:

• You're an individual contributor or small team prospecting in European markets

• Your workflow lives on LinkedIn and Sales Navigator

• You need accurate European phone numbers above all else

• You already have separate tools for outreach, dialing, and CRM

• You want the simplest path from LinkedIn profile to phone call

• You do not need intent data, AI features, or a sequencing tool built in

Try Kaspr's free plan to test European data coverage with no credit card required. If you're evaluating a broader set of options, see our Kaspr alternatives guide.

Choose ZoomInfo if:

• You need the most comprehensive and accurate B2B data, globally

• Intent signals, conversation intelligence, and AI-driven deal insights are central to your sales motion

• Your organization spans sales, marketing, and RevOps and needs intelligence that flows across all three

• Enterprise security and compliance requirements are non-negotiable

• You want a platform that works inside your tools (via API and MCP server) as well as through its own interfaces

• You need EU coverage that scales beyond LinkedIn's surface

Explore how ZoomInfo's GTM Context Graph turns intent signals into pipeline-ready accounts -- start a free trial.

Apollo and Kaspr each serve real needs at accessible price points. Apollo gives mid-market teams an affordable all-in-one. Kaspr gives European SDRs the fastest path to a direct-dial.

But as your team grows and your GTM motion gets more complex, the question shifts from "how do I find contacts?" to "how do I know which contacts matter right now, why they're likely to buy, and what to say when I reach them?" That is the question ZoomInfo was built to answer -- and the gap Apollo and Kaspr leave open.

Frequently asked questions

Is Apollo better than Kaspr?

It depends on your geography and what you need beyond contact data. Apollo is better if you need data and outreach in one platform, primarily for US markets -- its sequences, parallel dialer, and AI email writing let an SDR run entire campaigns without switching tools. Kaspr is better if you are an individual contributor or small team prospecting in Europe via LinkedIn -- its European phone coverage is genuinely stronger for that use case.

Neither is the right choice if you need intent signals tied to your CRM data, conversation intelligence, or verified global coverage that holds up in enterprise security reviews. That is where ZoomInfo fills the gap both tools leave. If you're evaluating a broader set of options, our Apollo alternatives guide covers the full competitive landscape.

Should I look at ZoomInfo instead of Apollo or Kaspr?

Yes, if any of the following is true: your sales motion depends on knowing WHEN accounts are in-market (not just which contacts exist); you have a team spanning sales, marketing, and RevOps that needs intelligence flowing across all three; enterprise-grade security certifications (ISO 27001, ISO 27701, SOC 2 Type II) are procurement requirements; or you need a platform that plugs into your existing tech stack via API and MCP server rather than replacing it.

Apollo solves data and outreach bundling at accessible prices. Kaspr solves European LinkedIn prospecting for individual contributors. ZoomInfo solves the intelligence problem both tools leave unsolved -- knowing not just who to contact, but when and why, based on signals from your actual closed-won history.

Does Kaspr work outside of Europe?

Kaspr was built with European market roots and has a database of 200M+ European B2B contacts. For US-based prospecting, coverage is thinner -- Kaspr's own positioning focuses on Europe-first use cases. Apollo's 230M+ contacts provide stronger US coverage. ZoomInfo covers both at enterprise scale: 500M contacts globally with 34M+ international company profiles and 45M+ mobile numbers outside North America, with 1.8 million international mobile numbers added across six European markets in 2025.

Does Apollo include intent data?

Yes. Apollo includes buying intent data on all plans, including the free tier, covering 1,600+ intent topics via a partnership with LeadSift (a Foundry company). This is one of Apollo's strongest features at its price point, and it is notably available without an Enterprise commitment. ZoomInfo's intent approach is qualitatively different: Guided Intent identifies research topics historically correlated with your closed-won deals, then surfaces accounts matching that pattern in real time -- rather than requiring you to select from a generic topic library and hope the signals match your buyers.

What is the main difference between Apollo and Kaspr?

Apollo is an all-in-one sales platform -- data, sequences, dialer, deal management, and AI email writing in one subscription. Kaspr is a LinkedIn-native contact extraction tool -- it reveals European phone numbers and emails directly from LinkedIn profiles, Sales Navigator searches, Groups, Events, and post engagers, then pushes contacts to your CRM. Apollo targets teams wanting stack consolidation for US-centric outbound; Kaspr targets individual SDRs who live in LinkedIn and need European direct-dial numbers above all else. The tools do not directly compete -- they serve different buyer profiles with different geographic needs and different workflow philosophies.

More Apollo and Kaspr comparisons and guides

If you're interested in reading more, you might like:

• Top 11 Apollo Alternatives for B2B Sales Intelligence in 2026

• 11 Best Kaspr Alternatives & Competitors for 2026

• 6sense vs. Apollo (vs. ZoomInfo): Which B2B Sales and Marketing Platform Fits Your GTM Strategy in 2026?