Unified sales intelligence and engagement platform for B2B teams
Apollo.io is an AI-powered sales platform that combines a B2B contact and company database with outreach automation, inbound lead management, and deal tracking. It's designed to replace the typical three-to-five tool stack (a data provider, a sequencing tool, a dialer, a CRM enrichment tool) with one connected platform.
The database at its core covers 210M+ contacts and 30M+ companies (per the official Apollo Data page at apollo.io/product/b2b-data), with a 91% email accuracy rate backed by a 7-step verification process that runs real-time checks and cleans emails before you send. Data is refreshed continuously — 150M contacts refreshed and 72M emails verified monthly.
Apollo is used by 500,000+ companies and holds a 4.7/5 rating based on 9,015 reviews as of early 2026 (per the official pricing page). It's self-serve: you can sign up for free, start searching contacts, and build your first outreach sequence without talking to a sales rep. It's also explicitly built for founders — Apollo maintains a dedicated persona page at apollo.io/personas/founders with tooling tailored to one-person and early-stage outbound workflows.
The primary use case is outbound prospecting. A founder or sales rep defines their target customer profile, uses Apollo's 65+ filters to build a list of matching contacts, and kicks off an email or phone outreach sequence directly from the platform. The sequence runs automatically: follow-ups send on schedule, bounces get logged, replies pause the sequence. What used to take hours of manual list research and CRM entry takes minutes.
The second use case is inbound lead management. Apollo identifies anonymous visitors to your website, enriches inbound form submissions with verified contact data in real time, and routes qualified leads to calendar bookings or outreach sequences automatically. Hot leads stop falling through the cracks.
The third use case is data enrichment. Teams use Apollo to keep their CRM clean — appending missing contact data, updating job titles and emails as people change roles, and syncing fresh data to Salesforce or HubSpot on a defined schedule.
The fourth use case, increasingly relevant in 2026, is AI-assisted deal execution. Apollo's AI Assistant and pre-meeting intelligence features prepare sellers for conversations with account context, generate call summaries and follow-up drafts, and surface deal alerts when accounts go quiet or signals change.
The foundational layer of the platform. Search and filter across 210M+ contacts and 30M+ companies using 65+ filter types including job title, seniority, industry, company size, revenue, technology stack, and buying intent signals. Emails are verified through a 7-step process with a 91% accuracy rate. Direct phone and mobile numbers are verified in real time at the point of request.
Build multi-step, multichannel outreach campaigns combining email, phone (via the built-in dialer), and LinkedIn touches. Sequences run automatically with A/B testing across email variants, built-in deliverability guardrails, and reply detection that pauses sequences when a contact responds. Email campaigns are included on every plan including the free Starter plan.
Apollo's AI layer surfaces research, drafts outreach, generates call summaries, creates follow-up tasks, and provides pre-meeting intelligence. Positioned as an on-demand sales coach that reduces manual prep time per account and per conversation. Available across paid plans.
Anonymous website visitor identification shows which companies are on your site without filling out a form. Real-time form enrichment appends contact data as leads submit. An instant routing engine connects qualified inbound leads to a built-in calendar and scheduler. Automated nurture sequences handle leads that aren't ready to book.
The Workflow Engine triggers automated GTM actions based on data signals: a contact changes jobs, a target company shows intent, a lead visits a high-value page. Workflows reduce the manual monitoring required to act at the right moment across a large contact base.
Apollo's free plan, self-serve access, and Founders persona page are designed for exactly this. You can find target contacts, build a sequence, and start outreach on day one without a budget commitment or a sales call. The Apollo Academy provides free guides and templates specifically for solo founders building their first outbound motion.
The free Starter plan removes the financial risk of committing before you know whether outbound will work for your business. You can test the database coverage for your target market, run a small sequence, and validate before upgrading to a paid plan.
Teams currently running a separate data provider, sequencing tool, and CRM enrichment solution can consolidate to Apollo and cut tool spend. The official homepage cites 64% lower tech stack costs as a documented customer outcome.
If you're generating website traffic but losing inbound leads to slow follow-up or incomplete contact data, Apollo's visitor identification, form enrichment, and instant routing features close that gap without requiring a separate marketing automation tool.
Filter by job title, seniority, department, industry, company size, revenue, location, technology stack, funding stage, and intent signals to build targeted prospect lists.
Search 30M+ companies using firmographic and technographic filters to identify target accounts matching your ideal customer profile.
Identify contacts and companies showing in-market research behavior to prioritize outreach toward accounts actively evaluating solutions like yours.
Company-level identification of anonymous website visitors — see which businesses are browsing your site and trigger outreach or enrichment workflows automatically.
Manual and AI-powered scoring to prioritize the highest-value accounts from your prospect list based on fit and engagement signals.
Pull Apollo contact data on any LinkedIn profile or company website without leaving the browser tab. Available on all plans.
Multi-step automated email campaigns with scheduling, A/B testing, reply detection, and deliverability guardrails. Included on every plan including free.
Built-in phone calling with call recording and CRM logging. Eliminates the need for a separate dialer subscription.
LinkedIn touches as steps within outreach sequences, enabling multichannel prospecting from a single workflow.
Generates pre-meeting account briefs, drafts outreach copy, creates post-call summaries and next-step tasks, and surfaces deal alerts when accounts change status.
Rules-based routing to calendar, sequence, or CRM owner for qualified inbound leads. Connects to a built-in scheduler for instant booking.
Auto-complete contact and company data on inbound form submissions, reducing friction and improving the completeness of every inbound lead record.
Multiple customizable pipelines with visual boards, deal stages, deal analytics, and automated deal tasks.
Call recording, transcription, and coaching insights from recorded sales conversations.
Append and update Salesforce or HubSpot records in real time as contacts change jobs or titles. Available via scheduled or triggered enrichment runs.
Automated GTM triggers based on data signals and behavioral events — job changes, funding rounds, intent spikes, page visits.
Native two-way CRM integrations for contact sync, lead enrichment, and activity logging.
Push Apollo contacts and data directly into existing sales engagement platform workflows.
Available on Custom plans for advanced integrations and developer-built workflows.
Certified as both a GDPR Data Processor and Data Controller. Also holds CCPA, CPRA, EU-US DPF, PCI DSS, and CASA Tier 2 certifications.
Apollo offers a genuine free plan with no credit card required. The Starter plan is free forever and includes access to the contact database, email sequences (Gmail and Microsoft connections only), and basic prospecting features. Trial plans include 50 credits and 5 mobile credits with access to nearly all features of the selected plan tier.
After trial, you can convert to a paid plan or stay on the free Starter plan permanently. Paid plans add higher credit allowances, non-Gmail/Microsoft email connections, mobile number credits, advanced AI features, and higher usage limits. Upgrades take effect immediately. Cancellations take effect at the end of your current billing cycle — no auto-renewal trap, no 60-day notice window required.
The Unlimited plan tier is governed by Apollo's Fair Use Policy: 10,000 credits per account per month for non-paying accounts on an Unlimited plan, or the lesser of [dollars paid / $0.025] or 1,000,000 credits per account per year for paying accounts. Additional credits can be purchased at any time.
Apollo's pricing page at apollo.io/pricing is self-serve and publicly accessible — no sales call required to see plan details or start a subscription.
Note: The exact current monthly prices for paid tiers (Basic, Professional, Custom) could not be confirmed from the live page at time of writing due to JavaScript rendering. Verify the current plan prices directly at apollo.io/pricing before subscribing.
Pricing last verified March 2026. Check apollo.io/pricing for current plan details.
A standalone B2B data provider (ZoomInfo, Lusha, Clearbit) Apollo's 210M+ contact database with 91% email accuracy replaces the need for a separate contact data subscription for most small business and startup use cases.
A separate email sequencing tool (Outreach, SalesLoft, Mailshake) Apollo's built-in sequence builder handles multi-step email, phone, and LinkedIn campaigns with A/B testing and deliverability guardrails, removing the need for a standalone sequencing platform at most team sizes.
A standalone dialer (Aircall, JustCall) Apollo's built-in dialer handles call recording, logging, and CRM sync without a separate subscription. A CRM enrichment tool (Clearbit Enrich, Lusha) — Apollo's real-time enrichment and scheduled CRM data updates replace point enrichment solutions for Salesforce and HubSpot.
Your primary CRM (Salesforce, HubSpot) Apollo feeds verified contact data and activity logs into your CRM but doesn't replace it. The CRM remains the system of record for deals and account history.
A dedicated marketing automation platform (Marketo, HubSpot Marketing) Apollo integrates with Marketo and handles some nurture sequencing, but teams running complex multi-channel marketing campaigns typically keep their marketing automation platform alongside Apollo.
A dedicated conversation intelligence platform (Gong) Apollo includes call recording and basic conversation intelligence, but teams running large-scale sales coaching programs at 50+ reps may keep Gong for its depth of coaching analytics.
LinkedIn Sales Navigator Apollo's Chrome Extension pulls data on LinkedIn profiles, but teams doing heavy LinkedIn-first social selling often use Sales Navigator alongside Apollo for its native LinkedIn search and InMail capabilities.
Apollo replaces the most commonly bundled combination of tools in small B2B sales stacks: a data provider plus a sequencing tool. For solo founders and teams under 10, that consolidation is the core value proposition. one subscription instead of two or three. Whether it replaces your existing stack depends on which tools you're currently running and at what scale. Teams already on Salesforce with Outreach and ZoomInfo at enterprise scale typically use Apollo as a data enrichment layer rather than a full replacement.
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