Cognism vs Apollo.io
Sabarish Chandrasekar
Last updated on
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The short answer
Cognism and Apollo.io both sell B2B contact and company data with outbound tooling on top, and both target sales and RevOps teams running outbound programs. The honest split comes down to data verification method, geography, and pricing model. Cognism is a data-first platform built around Diamond Data, human-operator-verified mobile numbers, with a strong reputation for EU, UK, and DACH coverage and GDPR compliance posture, sold entirely through a quote-gated, demo-required sales process with no published pricing. Apollo.io is an all-in-one, self-serve prospecting and engagement platform (data, sequences, dialer, and conversation intelligence) with transparent per-seat pricing and a free tier, skewing toward North America tech and SaaS ICPs.
If your outbound is UK, EU, or DACH-heavy and connect rate on mobile numbers matters more than anything else, Cognism’s Diamond Data (human-operator-verified numbers, reported 2 to 3x higher connect rates) and its GDPR compliance posture are the more defensible pick, even though pricing requires a demo and quote rather than a published price list.
If you want a free tier to start, transparent per-seat pricing (Basic $49/user/mo, Professional $79/user/mo, annual billing), and data plus sequencing, dialing, and conversation intelligence bundled into one tool, and your ICP is North America-heavy tech or SaaS, Apollo.io is the more accessible and self-serve option.
At a glance
| Cognism | Apollo.io | |
|---|---|---|
| Founded / Vendor | Cognism (cognism.com), founded 2015 | Apollo.io (apollo.io), founded 2015 |
| Category | Data-first sales intelligence platform | All-in-one prospecting + engagement platform |
| Starting price | No public price; demo-gated quote | $0 (Free tier); Basic $49/user/mo (annual) |
| Public rating | 4.5/5 G2 (~1,201 reviews, verify live) | 4.7/5 G2 (~9,344 to 9,645 reviews, verify live) |
| Best for | EU/UK/DACH outbound, compliance-sensitive buyers | North America tech/SaaS outbound, self-serve teams |
Vendor profile
Cognism
Cognism is a London-headquartered B2B data and sales intelligence platform built around “Diamond Data,” mobile numbers that are dialed and verified by human operators before being added to the dataset, rather than sourced and left unverified. It also offers Bombora intent data as an add-on and CRM/sequencer integrations. Cognism’s core differentiator is EU, UK, and DACH data coverage and a GDPR compliance posture that reviewers frequently cite as the reason EU-based teams choose it over US-centric tools like Apollo.io or ZoomInfo. Cognism does not publish pricing; its site routes every plan to “book a demo,” and reported team size ranges from roughly 455 to 540 employees depending on source and date.
- Vendor
- Cognism (cognism.com)
- Platform
- Web app (SaaS)
- Category
- Data-first sales intelligence
- Pricing model
- Quote-gated; demo required; no public price list
- Starting price
- Not published (verify live via demo)
- Public rating
- 4.5/5 G2 (~1,201 reviews per G2 seller listing; a separate G2 page cites 4.6/500+, discrepancy unresolved, verify live)
Apollo.io
Apollo.io is a San Francisco-headquartered, self-serve, all-in-one prospecting and engagement platform that combines a contact database with multi-step email sequences, a built-in dialer, conversation intelligence, and workflow automation in a single tool. It publishes transparent per-seat pricing with a functional free tier, and its data coverage is strongest for US-based tech, SaaS, and startup ICPs. Apollo’s credit-based consumption model (email and phone-reveal credits) has drawn criticism for hidden or escalating costs, and reported mobile-number verification quality for EMEA and DACH numbers is described as weaker than Cognism’s human-verified Diamond Data. Reported team size ranges widely, from roughly 400 to 1,600 employees depending on source.
- Vendor
- Apollo.io (apollo.io)
- Platform
- Web app (SaaS)
- Category
- All-in-one prospecting + engagement
- Pricing model
- Per-seat tiered; free tier; annual or monthly
- Starting price
- $0 (Free); Basic $49/user/mo (annual)
- Public rating
- 4.7/5 G2 (~9,344 to 9,645 reviews depending on snapshot date, verify live)
Pricing: what you'll actually pay
Pricing is the clearest structural difference between these two tools. Cognism publishes no dollar figures at all; every tier routes to a demo. Apollo.io publishes per-seat prices and a free tier. Cognism figures below are third-party, Vendr-sourced estimates, not confirmed list prices; Apollo figures are from Apollo’s published pricing page as of July 2026. Verify both live before purchase.
| Cognism | Apollo.io | |
|---|---|---|
| Starting price | Not published; demo required | $0 (Free tier) |
| Entry tier (reported) | Grow tier ~$1,500 to $10,000/yr (Vendr estimate, unverified) | Basic $49/user/mo (annual); ~$59 monthly |
| Upper tier (reported) | Elevate tier ~$2,550 to $25,000/yr (Vendr estimate, unverified) | Professional $79/user/mo (annual); ~$99 monthly |
| Platform / setup fee | Reported ~$15,000 to $25,000/yr platform fee before per-seat costs, plus $500 to $1,500 onboarding (unverified estimate) | None; Organization tier $119/user/mo (annual, min. 3 seats) |
| Billing model | Annual contract; sales-negotiated | Annual or monthly (monthly ~15 to 25% higher) |
| Consumption model | Not detailed in public sources | Credit-based (email/phone-reveal credits; phone reveals ~8x email credit cost; overage ~$0.20/credit) |
Capability comparison
Both platforms provide the sales-intelligence core: a contact and company database plus filtering. The gaps appear on verification method, bundled engagement tooling, geography, and pricing transparency. Cognism leads on human-verified mobile data and EU/UK/DACH coverage plus compliance; Apollo.io leads on bundled engagement tooling, self-serve access, and published pricing.
| Service | Cognism | Apollo.io |
|---|---|---|
| Human-verified mobile numbers | ✓ (Diamond Data; operator-dialed and verified) | ✕ (sourced, not operator-verified) |
| EU / UK / DACH data coverage | ✓ (frequently cited strength) | Partial (reported weaker EMEA/DACH mobile accuracy) |
| North America data depth | Partial (reported weaker than Apollo per multiple reviews) | ✓ (strongest coverage segment) |
| GDPR / compliance posture | ✓ (heavily marketed to EU enterprise buyers) | Partial (less frequently highlighted as a differentiator) |
| Intent data | ✓ (Bombora add-on) | ✕ (no standalone intent product) |
| Built-in email sequencing | Partial (data-first scope; sequencer integrations, not native depth) | ✓ (multi-step, A/B tests, reply detection) |
| Built-in dialer / conversation intelligence | Partial (integrations referenced, not itemized) | ✓ (dialer plus conversation intelligence) |
| Free tier / self-serve entry | ✕ (demo required to see pricing or start) | ✓ (functional free plan) |
| Transparent published pricing | ✕ (quote-gated) | ✓ (per-seat tiers listed publicly) |
| G2 review volume (statistical weight) | Lower (~1,201 reviews) | Higher (~9,300+ reviews) |
Decision matrix - who fits which side
| Criterion | Cognism | Apollo.io |
|---|---|---|
| EU / UK / DACH-heavy outbound | ✓ | - |
| GDPR compliance is a top buying factor | ✓ | - |
| Human-verified mobile numbers matter most | ✓ | ✕ |
| North America tech / SaaS outbound | - | ✓ |
| Want a free tier / self-serve entry | ✕ | ✓ |
| Want transparent published pricing | ✕ | ✓ |
| Need data + sequencing + dialer in one tool | ✕ | ✓ |
| Want intent data included | ✓ (add-on) | ✕ |
| Comfortable with demo-gated sales process | ✓ | - |
| Want the deepest verified review pool | ✕ | ✓ |
Check = clear edge. Dash = capable but not the stronger pick. Cross = outside the model.
Strengths & tradeoffs
Both tools do the core job (surface B2B contacts and help you reach them), and each side wins rows the other does not. The honest differences are verification method, geography, and pricing model.
| Axis | Cognism | Apollo.io |
|---|---|---|
| Scope | Data-first platform: contacts, company data, Bombora intent add-on | All-in-one: data, sequences, dialer, and conversation intelligence in one tool |
| Data verification | Diamond Data: human-operator-dialed and verified mobile numbers, reported 2 to 3x higher connect rates | Sourced database; reported weaker EMEA/DACH mobile-number verification than Cognism |
| Geography skew | Strongest for EU, UK, and DACH; reported weaker North America and APAC depth | Strongest for US tech/SaaS; reported weaker EMEA/DACH accuracy |
| Compliance posture | Heavily marketed GDPR compliance; frequently cited by EU enterprise buyers as the deciding factor | Compliance less frequently highlighted as a differentiator |
| Pricing model | Quote-gated; no published prices; reported platform fee ~$15,000 to $25,000/yr plus per-seat costs (unverified estimates) | Transparent per-seat tiers; free tier; credit-based add-ons criticized for hidden/escalating costs |
| Access | Demo required for any pricing or trial | Functional free plan; self-serve signup |
| Public proof | 4.5/5 G2 (~1,201 reviews; a separate G2 page cites 4.6/500+, discrepancy unresolved) | 4.7/5 G2 (~9,344 to 9,645 reviews depending on snapshot date) |
Ratings & track record
| Metric | Cognism | Apollo.io |
|---|---|---|
| G2 rating | 4.5 / 5 (per seller listing; verify live) | 4.7 / 5 (verify live) |
| G2 reviews | ~1,201 (a separate G2 page cites ~500+) | ~9,344 to 9,645 (source/date-dependent) |
| Category | Data-first sales intelligence | All-in-one prospecting + engagement |
| Notable signal | Human-verified mobile data; EU/GDPR strength cited repeatedly by reviewers | Larger review base; free tier and transparent pricing |
On public ratings, Apollo.io sits higher on G2 (4.7) than Cognism (4.5), and its review pool is roughly eight times larger (~9,300+ versus ~1,200), which gives its rating more statistical weight; treat Cognism’s rating as directional given the smaller sample and the unresolved discrepancy between its two G2-adjacent listings (4.5/1,201 versus 4.6/500+). Both tools’ direct G2 review pages returned access errors during this research (HTTP 403), so confirm current ratings and counts on g2.com before relying on them. The reviewer quotes cited for both tools were sourced via search aggregation rather than pulled directly from G2, so verify exact wording and attribution before quoting either verbatim. The choice here is about geography, verification method, and pricing access, not which tool is “better.”
Both tools’ data is sourced from publicly available information and third-party cross-checks as of July 2026. Cognism’s pricing has no public list price (figures cited are Vendr-based third-party estimates, unverified), and both vendors’ G2 pages could not be fetched directly during this research; verify ratings, review counts, and current pricing with each vendor before buying. This comparison is independent; we take no affiliate or referral fees from either vendor.
Frequently asked questions
What is the difference between Cognism and Apollo.io?
Is Cognism better than Apollo.io?
Which is cheaper, Cognism or Apollo.io?
Does Cognism have a free trial like Apollo.io?
Which tool has better data for EU or UK outbound?
Which has more G2 reviews, Cognism or Apollo.io?
Sources and references
- Cognism homepage (accessed July 2026)
- Cognism pricing page (accessed July 2026)
- G2: Cognism seller listing (4.5, ~1,201 reviews) (accessed July 2026)
- Cognism pricing guide (Salesmotion, Vendr-based estimate) (accessed July 2026)
- Cognism review (Abmatic AI) (accessed July 2026)
- Apollo.io homepage (accessed July 2026)
- Apollo.io pricing page (accessed July 2026)
- G2: Apollo.io Winter 2026 announcement (~9,000+ reviews) (accessed July 2026)
- Apollo pricing guide (PhantomBuster) (accessed July 2026)
- Apollo customer stories (accessed July 2026)
- Cognism vs Apollo.io comparison (Cognism-authored, read as vendor source) (accessed July 2026)
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