Apollo vs. Kaspr (vs. ZoomInfo): Which B2B Sales Intelligence Platform Fits Your Team in 2026?

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?

• Do you need a full outbound platform with sequences, dialing, and deal management, 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?

• How important are intent signals, conversation intelligence, and AI-driven prioritization to your sales motion?

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

In short, here's 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 270M+ 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 AI-powered 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 ZoomInfo's 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. 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.

If you're ready to see what enterprise-grade GTM intelligence looks like, explore ZoomInfo with 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 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 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 tells different stories by geography

The database size comparison is misleading without geographic context.

Apollo's 270M+ 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. 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." 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. 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 data separates prospecting from guessing

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 (exclusive to ZoomInfo) 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.

Source: ZoomInfo

This is a qualitative difference. Apollo and Kaspr (at Enterprise) can tell you a company is researching a topic. ZoomInfo can tell you the topic correlates with your closed-won deals and the company matches the pattern behind your best customers.

Outreach capabilities: full stack vs. no stack

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.

Source: Apollo

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.

Source: Kaspr

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. 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.

Source: Salesloft

AI: embedded assistant vs. nonexistent vs. intelligence engine

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

Apollo has invested 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 isn't necessarily a flaw. But it means Kaspr can't 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 doesn't 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.

Source: ZoomInfo

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 attributed 39% of active pipeline to opportunities identified or influenced by ZoomInfo signals and reported 54% productivity gains.

Pricing models reflect different target markets

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

• Free: $0, limited to 2 sequences, Gmail only, 10,000 email credits/month with verified domain

• 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.

Source: Apollo

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: Kaspr credits roll over on paid plans, unlike Apollo's.

Source: Kaspr

ZoomInfo uses custom-quoted, seat-and-credit-based subscriptions with no publicly listed prices.

The free ZoomInfo Lite tier provides permanent access with 10 monthly export credits, and a 7-day free trial of the full platform is available. Paid plans are tiered across Professional, Advanced, and Enterprise, with each tier unlocking capabilities (not just more credits): intent signals, AI features, advanced integrations, and dedicated support.

Source: ZoomInfo

ZoomInfo costs more, and that reflects a different proposition.

You're not paying for a contact database with outreach bolted on (Apollo) or a LinkedIn extraction tool (Kaspr). You're 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 shouldn't need many integrations because Apollo replaces most tools. This works until you need something Apollo doesn't 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.

Source: Kaspr

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

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

Try Kaspr's free plan to test European data coverage with no credit card required.

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/MCP) as well as through its own interfaces

See how ZoomInfo's GTM Context Graph turns prospecting into intelligence-driven selling with 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 and why?" That's the question ZoomInfo's data foundation, GTM Context Graph, and universal access were built to answer.