Apollo.io
Apollo.io combines the world's largest B2B contact database with 275M+ contacts, AI-powered sales engagement, email automation, and integrated dialer for complete sales workflow.
4.7
Verified
freemium
What is Apollo.io - 275M+ B2B Contact Database & AI Sales Intelligence Platform?
Apollo.io - 275M+ B2B Contact Database & AI Sales Intelligence Platform is a specialized sales & conversion tool designed to streamline workflows for professionals.
Apollo.io solves one of the most fundamental challenges in B2B sales: finding accurate contact information for target prospects and efficiently engaging them with personalized outreach at scale. Traditional sales workflows require using separate tools for contact data (like ZoomInfo), email automation (like Outreach or Salesloft), dialing (like Aircall), and CRM management—creating friction, data silos, and complexity. Apollo.io consolidates these capabilities into a unified platform where prospecting, engagement, and pipeline management happen seamlessly in one environment.
The platform's 275M+ contact database provides the foundation for effective prospecting, while integrated engagement tools enable immediate action on discovered prospects without data transfers or tool switching. This integration dramatically reduces the time from identifying a prospect to initiating meaningful contact—often from hours to minutes. For sales teams, this efficiency translates directly to more conversations, more pipeline, and ultimately more closed deals.
Apollo.io is particularly valuable for mid-market and enterprise B2B companies with dedicated sales teams, fast-growing startups building outbound sales motions, sales development organizations focused on high-volume prospecting, account-based marketing teams targeting specific accounts, and revenue operations professionals optimizing go-to-market efficiency. The platform scales from individual sales reps on the Free plan to large enterprise deployments with hundreds of users on Organization plans, making it accessible across company sizes and growth stages.
Key Use Cases:
b2b contact database, sales intelligence platform, email automation, sales engagement, lead generation, prospecting tool, power dialer, crm integration, sales ai, outreach automation
Key Features
Access to 275M+ verified B2B contacts and 73M+ companies
AI-powered email personalization and content generation
AI lead scoring and research capabilities
Unlimited email sequences on paid plans
Advanced prospecting filters with intent data
Built-in power dialer with local presence
Call recording with AI-driven insights (4,000 mins on Pro)
Automated meeting scheduling with calendar sync
Multi-channel outreach sequences (email, phone, tasks)
A/B testing for email sequences on Professional plan
CRM integrations with Salesforce, HubSpot, and others
Waterfall enrichment from multiple data sources
Chrome and Salesforce browser extensions
Email deliverability suite with warmup capabilities
CSV, CRM, and API data enrichment
Intent topics and filters for buyer signals
Domain and mailbox purchasing
Unlimited Gmail and Microsoft mailboxes on Professional
Automated workflows for sales processes
Projects for team collaboration (beta)
Analytics with pre-built reports
Pipeline management and deal tracking
Mobile app for on-the-go prospecting
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Frequently Asked Questions
What is Apollo.io?
Apollo.io is an all-in-one sales intelligence and engagement platform that combines a database of 275M+ B2B contacts and 73M+ companies with email sequencing, AI personalization, power dialer, meeting scheduling, and CRM capabilities to streamline the entire sales workflow from prospecting to deal closure.
How much does Apollo.io cost?
Apollo.io offers a Free plan with 900 annual credits. Paid plans include Basic at $49/user/month (30,000 credits), Professional at $79/user/month (48,000 credits, most popular), and Organization at $119/user/month with minimum 3 users (72,000 credits). All paid plans are billed annually and include 14-day free trials.
What are credits in Apollo.io and how do they work?
Credits are used for actions like exporting contacts, revealing email addresses, accessing mobile phone numbers, and enrichment operations. Free plan grants 900 credits annually (distributed monthly), while paid plans provide credits upfront annually: Basic (30,000), Professional (48,000), or Organization (72,000). Credits refresh annually on your subscription anniversary.
How accurate is Apollo.io's contact data?
Apollo.io uses proprietary verification systems, community contributions from 500,000+ users, and continuous enrichment to maintain high accuracy rates. While no database is 100% perfect, Apollo.io generally provides good contact data quality with verification features and deliverability tools to minimize bounces and improve outreach effectiveness.
Can I use Apollo.io for free?
Yes, Apollo.io offers a Free plan with 900 annual credits (granted monthly), AI Assistant access, AI Research, 2 sequences, browser extensions, deliverability suite with email warmup, and basic prospecting filters—allowing you to explore core features without payment.
What is the difference between Basic, Professional, and Organization plans?
Basic ($49/month) includes 30,000 credits, unlimited sequences, advanced filters, CRM integrations, and US dialer. Professional ($79/month, most popular) adds 48,000 credits, A/B testing, Projects, unlimited mailboxes, automated workflows, 4,000 minutes of call recording with AI insights, and analytics. Organization ($119/month, min 3 users) provides 72,000 credits and enterprise features for larger teams.
Does Apollo.io integrate with my CRM?
Yes, Apollo.io integrates with major CRM platforms including Salesforce, HubSpot, and others. Integration is bidirectional, syncing contacts, activities, and engagement history between systems. Apollo.io also includes native pipeline management features for teams without existing CRMs.
How is Apollo.io different from ZoomInfo?
Apollo.io combines contact database with built-in sales engagement tools (email sequences, dialer, meeting scheduling) at lower cost, while ZoomInfo focuses primarily on contact data with deeper enterprise information but requires separate tools for outreach. Apollo.io offers better value for teams wanting integrated prospecting and engagement workflows.
Can I make phone calls with Apollo.io?
Yes, Apollo.io includes a built-in power dialer on all paid plans (credits apply for usage). Features include local presence dialing, call recording, voicemail drop, call disposition tracking, and automatic logging to CRM. Professional plan includes 4,000 minutes of call recording with AI-powered insights and coaching.
What AI features does Apollo.io offer?
Apollo.io includes AI email personalization that generates contextually relevant messaging, AI lead scoring that prioritizes high-potential prospects, AI research capabilities for gathering prospect insights, AI-powered call insights from recordings, and an AI Assistant (beta) that provides recommendations and automates routine tasks throughout the sales workflow.
Does Apollo.io help with email deliverability?
Yes, Apollo.io includes a comprehensive deliverability suite with email warmup that gradually builds sender reputation, deliverability monitoring tracking inbox placement rates, spam testing identifying potential issues before sending, and domain health scoring with actionable recommendations to improve email deliverability.
Can I automate my sales outreach with Apollo.io?
Yes, Apollo.io's sequence engine allows you to create multi-touch outreach campaigns with automated emails, follow-ups, call tasks, and LinkedIn tasks based on prospect behavior and engagement. Sequences support conditional logic, A/B testing (Professional plan), time delays, and trigger-based actions for sophisticated automation.
How many contacts are in Apollo.io's database?
Apollo.io's database contains over 275 million verified B2B contacts and 73 million companies globally, making it one of the largest B2B contact databases available. The database includes verified emails, direct phone numbers, job titles, company information, technographics, and intent signals.
Is there a free trial for Apollo.io paid plans?
Yes, all paid plans (Basic, Professional, and Organization) include a 14-day free trial, allowing you to test premium features before committing to a subscription.
What is Apollo.io best used for?
Apollo.io excels at B2B outbound prospecting, account-based marketing, sales development operations, multi-channel outreach campaigns, pipeline management, and any sales workflow requiring accurate contact data combined with efficient engagement tools—all in one integrated platform.