Cognism vs Apollo [2026]: GDPR Data + True Cost Comparison | Cleanlist

Cognism and Apollo represent two different theories about how to win in B2B data.

Cognism's theory: European buyers care about compliance, premium phone-verified data, and a sales-led relationship. Apollo's theory: US buyers care about transparent pricing, a single tool for the whole funnel, and self-serve onboarding. Both tools are popular for good reasons. Both leave real accuracy gaps.

There is a third path worth knowing: Cleanlist delivers waterfall enrichment from 15+ providers (98% email, 85% phone), credit-based pricing from $29/mo, and 30 free credits to test it.

Quick Comparison: Cognism vs Apollo

The table reveals the core tradeoff. Cognism offers premium European data behind a sales conversation and a five-figure check. Apollo offers a self-serve all-in-one tool with weaker email accuracy and thinner phone coverage.

How Does Cognism Work in 2026?

Cognism is a sales intelligence platform built around two assets: a 440M+ contact database with strong European coverage, and a manually verified mobile phone product called Diamond Data. The company is headquartered in London and treats GDPR compliance as a product feature rather than a checkbox.

Cognism's Strengths

Phone-verified mobile data for Europe. Cognism's research team manually dials mobile numbers and confirms they reach the right person. Verified numbers get a Diamond badge and a claimed 98% connect rate. The library is about 10M numbers, concentrated in UK, DACH, and Nordics. For teams that cold call into Europe, this is the strongest single phone product on the market.

GDPR-native compliance posture. Cognism uses legitimate interest as its lawful basis, backed by Privacy Impact Assessments and Legitimate Interest Assessments. Article 14 notifications go to data subjects. The company holds ISO 27001, ISO 27701, SOC 2 Type II, and is registered with the UK ICO. For regulated buyers in financial services, healthcare, and EU enterprise, this paperwork shortens procurement cycles.

European contact depth. 200M+ European records, materially better than Apollo for UK and continental B2B prospecting.

Sales-led onboarding and CSM support. Every deal includes a customer success manager and onboarding sessions. Bombora intent data is available as an add-on at roughly $200-400 per topic.

Cognism's Weaknesses

Pricing is opaque and high. Cognism does not publish pricing. Vendr and procurement benchmarks put Grow (Platinum) at roughly $15,000/year platform fee plus $1,500/user/year, and Elevate (Diamond) at $25,000/year plus $2,500/user/year. A 5-person Elevate team often lands near $41,500 in year one once onboarding and intent topics are added.

Diamond Data covers a small slice. The 10M verified mobile records are about 2.3% of the 440M total. Outside UK, DACH, and Nordics, Diamond coverage thins fast. US and APAC phone coverage is notably weaker.

Annual contracts with renewal escalators. Annual commitments only. Renewals typically include 10-15% price increases. No monthly plan and no free trial to test data at scale before signing.

No built-in outreach. Cognism is a data layer. You still need Outreach, Salesloft, or Lemlist on top ($50-150/user/month). Email verification is implicit rather than transparent: no confidence score per record.

“Cognism's UK and DACH phone data is the best on the market for cold calling regulated European markets. The price reflects that. If you are calling US tech buyers, you are paying a premium for coverage you don't use.”

How Does Apollo Work in 2026?

Apollo is an all-in-one sales platform built around a 275M+ contact database, an email sequencer, a phone dialer, and a Chrome extension. Apollo's bet is that SMB and mid-market sales teams want one tool, transparent pricing, and self-serve onboarding rather than a sales call.

Apollo's Strengths

Transparent, accessible pricing. Apollo publishes plans on its website. Basic is $49/user/mo annual ($59 monthly). Professional is $79/user/mo annual ($99 monthly). Organization is $119/user/mo annual ($149 monthly). A 5-person team on Professional pays $4,740/year, less than a quarter of a Cognism Grow contract.

All-in-one prospecting and outreach. Apollo bundles the database with email sequences, a US dialer (Professional+), an international dialer (Organization+), LinkedIn integration, and analytics. For teams that want one tool for the full prospecting workflow, this eliminates the cost of Outreach or Salesloft.

Large total database with strong US coverage. 275M+ contacts and 73M+ companies. Apollo's coverage of US tech and SaaS is strong. Coverage of mid-market and SMB outside the US is decent but not best-in-class.

Functional free tier and Chrome extension. Free plan includes full database access, basic search, and limited credits (5 mobile, 10 export per month). The LinkedIn Chrome extension enriches profiles as you browse, giving SDRs a fast workflow.

CRM integration on every paid plan. Salesforce and HubSpot sync starts on Basic, no premium-tier gateway.

Apollo's Weaknesses

Email accuracy is the structural problem. Independent testing consistently puts Apollo's email accuracy near 73%. More telling: applying Apollo's own "Verified Emails" filter drops the database from 275M+ to about 96M, meaning 65% of contacts have unverified emails. For teams sending 500 emails per week, the bounce math gets ugly fast.

Single-source architecture. Apollo queries its own database with no fallback when a record is missing or stale. No waterfall enrichment, no multi-source cross-reference to confirm an email is still active.

Phone data is thin. Direct dial coverage sits around 30-45%, with no Diamond Data equivalent. Cold-call-heavy teams will leave gaps in the call list.

GDPR posture is light. CCPA-aligned with GDPR opt-out on request, but no Article 14 notifications or Legitimate Interest Assessments. Regulated EU buyers often flag this in procurement.

Per-seat pricing scales up fast. $49-119/user/mo looks cheap at 5 users. At 25 users on Professional you are at $23,700/year. At 50 users you are at $47,400/year, approaching Cognism territory without Cognism's compliance depth. Buyer sentiment in aggregated reviews skews negative, often citing data accuracy and support quality.

GDPR Compliance and International Coverage

This is where Cognism and Apollo split most cleanly. If you sell into Europe, compliance matters more than pricing.

For regulated EU buyers (financial services, healthcare, government suppliers), Cognism's paperwork often shortens procurement from six months to six weeks. For US-focused SMB teams, Apollo's lighter posture is acceptable. For teams selling into the EU at meaningful volume, expect Apollo to create compliance friction.

Real-World Use Cases

Four common team profiles, four different answers.

30-person UK SaaS calling into DACH. Cognism wins. Diamond Data covers DACH mobiles better than any alternative, and the GDPR posture clears procurement quickly. Expect $35-45K/year for 10 SDR seats on Elevate.

8-person US startup at $2M ARR, SDR-led outbound. Apollo wins. The all-in-one workflow plus transparent pricing fits the stage. Professional at $79/user/mo annual runs $3,792/year for 4 SDRs. Plan for a verification step on high-value campaigns.

15-person RevOps team cleaning a 200K CRM. Neither, fully. Apollo's accuracy is too low for bulk enrichment. Cognism is overkill for a one-time clean. This is the classic case for a waterfall enrichment platform that runs 15+ providers per record and returns a verified email confidence score.

Mid-market US sales team, 50 AEs calling globally. Hybrid. Apollo for US coverage and outreach. Cognism for European phone data on key accounts. Or replace both with a multi-provider waterfall to get one credit pool covering both regions.

Pricing Breakdown: True Cost Comparison

Headline pricing on these two tools tells almost none of the real story. Total cost of ownership is what matters.

Cognism Pricing in 2026

Add-ons: Intent topics $200-400 each, onboarding $500-1,500, annual renewal escalator 10-15%.

Typical 5-user Grow contract: ~$22,500/year base. Typical 5-user Elevate contract with intent: ~$41,500 in year one.

Cognism does not publish these numbers. They come from Vendr benchmarks and third-party procurement sources. Negotiated discounts of 28-52% are common at signing, but renewals usually walk most of that discount back.

Apollo Pricing in 2026

Typical 5-user Professional contract: $4,740/year (annual billing).

Apollo's pricing is genuinely transparent. The tradeoff is data quality.

Side-by-Side Total Cost

For deeper breakdowns: Cognism Pricing Guide and Apollo Pricing Guide.

When to Choose Cognism vs When to Choose Apollo

The honest answer depends on geography, compliance, and budget.

Choose Cognism if your revenue depends on European phone calls (UK, DACH, Nordics), procurement reviews data sourcing in detail, you have budget for a $20-50K annual contract, and you already run a separate sequencer like Outreach or Salesloft.

Choose Apollo if your buyers are US-based SMB or mid-market, budget is under $10K/year, you want one platform for search and outreach, and your team is under 15 users.

Choose neither if you need 95%+ email accuracy out of the box, you enrich large batches (10K+ records) regularly, per-seat pricing penalizes your team size, or you want credit-based pricing that scales with usage rather than headcount.

Where Cleanlist Fits In

The Cognism vs Apollo framing assumes you must trade compliance and phone depth (Cognism) against price and bundled outreach (Apollo). For most US and UK SMB teams, that is a false binary.

Cleanlist is a multi-provider waterfall enrichment platform that sits between them:

• Accuracy: 98% email, 85% phone via 15-provider waterfall
• Pricing: Credit-based from $29/mo, no per-seat charges
• Free tier: 30 credits, no credit card
• CRM integration: Native Salesforce, HubSpot, Pipedrive
• Compliance: GDPR opt-out, CCPA, SOC 2 (sufficient for most SMB and mid-market)
• No outreach tools: You pair it with your existing sequencer

The honest tradeoffs: Cleanlist does not run Article 14 notifications and does not maintain a Diamond-equivalent mobile library for DACH and Nordics. If you sell into regulated EU enterprise, Cognism is still the right tool. Cleanlist also does not include sequences, a dialer, or LinkedIn outreach. You bring your own outreach stack. The upside is accuracy that does not bounce, at a fraction of either competitor's cost.

For US, UK, and Canadian SMB to mid-market teams that want better than Apollo's 73% without the Cognism contract: start with 30 free credits. See detailed breakdowns: Cleanlist vs Apollo | Cleanlist vs Cognism.

“The B2B data market is bifurcating along geography. EMEA buyers pay a premium for Cognism's compliance and phone depth. US SMB buyers default to Apollo for price and convenience. The teams getting the best outcomes are running a verification layer on top of whatever database they chose, because no single-source tool clears 90% accuracy on its own.”

Frequently Asked Questions

Is Cognism or Apollo better for European data?

Cognism. The 200M+ European contact records and Diamond Data verified mobiles in UK, DACH, and Nordics outperform Apollo for any team where European cold calling drives revenue. Apollo's European coverage is decent for email but thin on phone.

Is Apollo or Cognism cheaper?

Apollo, by a wide margin. Apollo Professional at $79/user/mo annual is $4,740/year for 5 users. A comparable Cognism Grow contract starts near $22,500/year, and Cognism Elevate runs $35-45K for the same team size. Cognism does not include sequencing, so add Outreach or Salesloft on top.

How accurate is Apollo's email data really?

Independent testing puts Apollo email accuracy near 73%. Apollo's own "Verified Emails" filter shrinks the accessible database from 275M+ to 96M, suggesting 65% of records do not pass internal verification. Plan for a verification step before high-volume campaigns. See Apollo vs ZoomInfo for more detail.

Is Cognism GDPR compliant?

Yes, more so than most peers. Cognism uses legitimate interest as its lawful basis, runs Article 14 notifications to data subjects, holds ISO 27001 and ISO 27701 certifications, and is registered with the UK ICO.

Can I use Cognism and Apollo together?

Some teams do: Apollo for US coverage and bundled outreach, Cognism for EMEA phone calls. Total cost is often $30K+ for a small team, and you end up reconciling two databases. A single multi-provider waterfall tool usually delivers better economics and one clean dataset.