Seamless.AI vs Apollo.io

Compare Seamless.AI and Apollo.io for B2B lead generation. Evaluate data accuracy, pricing, and features for your sales prospecting.

Quick Verdict

Seamless.AI logo

Seamless.AI

4.3/5 (850 reviews)

Seamless.AI is a real-time B2B contact database with 1.7B+ verified emails, direct dials, and mobile numbers powered by AI-driven search and …

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VS
Apollo.io logo

Apollo.io

4.7/5 (8400 reviews)

Apollo.io is an all-in-one AI-powered sales intelligence and engagement platform with access to 210M+ verified contacts and 30M+ companies for B2B …

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Side-by-Side Comparison

Feature Seamless.AI Apollo.io
Rating 4.3/5 4.7/5
Reviews 850 8400
Starter Price Free (50 credits) $0
Pro Price $147 $49
Enterprise Custom $99
Trust Score 78/100 92/100
Verified Yes Yes

Seamless.AI

Pros

  • Massive database with 1.7 billion contacts
  • Real-time verification reduces bounce rates
  • Intuitive interface with powerful AI algorithms
  • Daily credit refresh keeps active teams productive
  • Strong CRM integrations with major platforms
  • Buyer intent signals help prioritize hot leads
  • Chrome extension enables seamless LinkedIn workflows
  • Free plan available to test platform quality

Cons

  • Pricing not publicly listed, requires sales consultation
  • Users report 20-30% email bounce rates
  • Job title accuracy issues mentioned in reviews
  • 72% of reviewers dissatisfied with pricing value
  • Difficult cancellation process reported by users
  • Annual contracts typically required
  • Add-on features increase total cost significantly
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Apollo.io

Pros

  • Massive verified B2B contact database
  • All-in-one platform replaces multiple tools
  • Generous free tier with 100 monthly credits
  • Strong email deliverability features
  • Excellent value compared to competitors
  • Seamless CRM integrations
  • AI-powered automation saves time
  • Multichannel outreach (email, phone, tasks)

Cons

  • Credit-based system can lead to unexpected costs
  • Data accuracy varies (bounce rates reported)
  • Interface can feel cluttered for new users
  • Customer support response times inconsistent
  • Limited customization in lower tiers
  • Credit depletion at scale increases costs
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Key Features

Seamless.AI Features

  • 1.7B+ contact database with 150M+ companies
  • Real-time email and phone verification
  • AI-powered prospector with advanced filters
  • Data enrichment for incomplete records
  • Buyer intent data across 12,000+ signals
  • Job change tracking and alerts
  • AI Writer for sales copy generation
  • Chrome extension for LinkedIn prospecting
  • CRM integrations (Salesforce, HubSpot, Outreach)
  • API access for custom workflows
  • Daily credit refresh on Pro plans
  • Pitch Intelligence for personalization

Apollo.io Features

  • 210M+ contact database with 30M+ companies
  • AI-powered email sequences and automation
  • Built-in cloud call dialer
  • Email deliverability optimization
  • Data enrichment and verification
  • Chrome extension for LinkedIn
  • CRM integrations (Salesforce, HubSpot)
  • Conversation intelligence and call recording
  • Anonymous visitor identification
  • Real-time form enrichment
  • Advanced analytics dashboard
  • Team collaboration tools

Seamless.AI and Apollo compete directly in the sales intelligence space. Seamless.AI emphasizes real-time data verification, while Apollo offers a more complete platform with outreach tools.

Key Differences

  • Seamless.AI: Real-time verified data, credit-based
  • Apollo: All-in-one platform, generous free tier
  • Data: Both claim high accuracy rates

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