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Head-to-head · B2B Contact Data Providers

Apollo vs 6sense

  • Updated Oct 2026
  • Both researched from official sources
  • 6 checks side by side
Higher score Apollo #2 in B2B Contact Data Providers 9.2/10 Free plan Free plan✓ 3 of 4 features Visit Apollo
6sense #5 in B2B Contact Data Providers 8.8/10 Pricing on request ✓ 4 of 4 features Visit 6sense

Apollo leads on 1 check, 6sense on 1, and 4 are even. Who comes out ahead on the 6 yes/no, price and count checks where we have data for both products. The editor score weighs everything else too.

Our verdict

  • Highest scoreApollo · 9.2/10
  • Free planonly Apollo
  • Most features6sense · 4 of 4

Apollo scores higher on our rubric for b2b contact data providers: 9.2 against 8.8 out of 10; our editors rank them #2 and #5.

Apollo offers free plan; 6sense doesn't. 6sense leads on contact database size: 4.5e+08 contacts versus 275 contacts.

Apollo is the better fit for all-around prospecting teams. 6sense is the better fit for account-based teams with predictive scoring.

  • Apollo fits best

    All-around prospecting teams

  • 6sense fits best

    Account-based teams with predictive scoring

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Side by side

Feature Apollo 9.2/10 Visit ↗ 6sense 8.8/10 Visit ↗
At a glance
Editor score 9.2 8.8
Ranking #2 in B2B Contact Data Providers #5 in B2B Contact Data Providers
Best for All-around prospecting teams Account-based teams with predictive scoring
Pricing model Free plan + paid Paid
Starting price Free plan —
Free plan ✓ (best) —
Free trial — —
Deployment Cloud, Browser extension Cloud, Browser extension
Platforms Web, Chrome extension Web, Chrome extension
Support Email, Docs, Community Docs
Compliance SOC 2, ISO 27001, GDPR, 2FA SOC 2, ISO 27001, GDPR
Integrations 200+ integrations 15 integrations
Built for Small business, Mid-market, Enterprise Mid-market, Enterprise
Features Apollo 3/4 · 6sense 4/4
Direct-dial data ✓ ✓
Intent data ✓ ✓
Technographic filters Not checked yet ✓ (best)
API access ✓ ✓
Specs
Contact database size 275 contacts 4.5e+08 contacts (best)
Monthly export limit Not checked yet Not checked yet
Our review
Pros
  • 240M+ contact database with direct dials and verified business emails
  • Intent, technographic, people, and company search filters
  • Sequences, dialer, AI features, API access, and CRM integrations
  • 450M-contact database with verified email and direct-dial data
  • Intent, technographic, persona, and buying-group discovery filters
  • APIs plus CRM, sales-engagement, and CSV export options
Cons
  • Paid plans are priced per seat with annual billing
  • Organization requires a minimum of three seats
  • Free access limits credits, chats, sequences, and filters
  • Pricing requires a contact-sales conversation
  • Its broad revenue-intelligence scope may exceed basic lookup needs
  • Predictive scoring and buying-group workflows require a defined ABM process
Our verdict

Apollo is a B2B data intelligence and sales engagement platform for sales, marketing, and revenue operations teams. It combines a searchable contact and company database with verified business emails, direct-dial phone numbers,…

Read the review →

6sense is a B2B revenue intelligence and sales intelligence platform for marketing and sales teams running account-based programs. Its Sales Intelligence product combines company and people search with buyer and account data acquisition,…

Read the review →
  1. ApolloB2B Contact Data Providers 9.2Free plan
  2. 6senseB2B Contact Data Providers 8.8Pricing on request

Strengths and trade-offs

  • Apollo — where it wins

    • 240M+ contact database with direct dials and verified business emails
    • Intent, technographic, people, and company search filters
    • Sequences, dialer, AI features, API access, and CRM integrations

    Where it doesn't

    • Paid plans are priced per seat with annual billing
    • Organization requires a minimum of three seats
    • Free access limits credits, chats, sequences, and filters

  • 6sense — where it wins

    • 450M-contact database with verified email and direct-dial data
    • Intent, technographic, persona, and buying-group discovery filters
    • APIs plus CRM, sales-engagement, and CSV export options

    Where it doesn't

    • Pricing requires a contact-sales conversation
    • Its broad revenue-intelligence scope may exceed basic lookup needs
    • Predictive scoring and buying-group workflows require a defined ABM process
  • Apollo9.2/10 · Free plan

    Apollo combines contact data, prospecting, engagement, enrichment, and CRM workflows.

    Visit ApolloFull verdict →
  • 6sense8.8/10 · Pricing on request

    A data-rich choice for account-based teams that need predictive buying signals.

    Visit 6senseFull verdict →

More comparisons

All B2B contact data providers comparisons → · Full ranking →

Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

Last updated · How we research and update