Last updated: 2026-07-21
Apollo.io is a sales intelligence platform used by 500,000+ companies for prospecting, pairing a contact database with sequencing, dialer, and AI lead scoring.
Apollo.io is a B2B sales intelligence platform that pairs a searchable contact and company database with 65+ filters spanning job title, seniority, industry, and technology stack. Built-in email and call sequences, a dialer, and an AI Assistant combine data, outreach, and prioritization into one workflow, replacing manual LinkedIn prospecting.
Apollo.io is a sales intelligence and engagement platform built by Apollo.io, Inc. (founded in 2015 as ZenProspect) that gives sales and recruiting teams direct access to a database of more than 210 million contacts and 35 million companies. It solves the problem of finding a working email address or phone number for a specific person at a specific company, replacing manual LinkedIn searching and guesswork with one searchable, filterable dataset built for outbound prospecting and recruiting. The core mechanism is a searchable contact and company database with granular filters spanning job title, seniority, industry, location, technology stack, and buying-intent signals, paired with a Chrome and Edge extension that surfaces the same data on LinkedIn, Gmail, Salesforce, and HubSpot pages without switching tabs. On top of the raw data sits a workflow layer: multi-step email and call sequences, a built-in dialer with call recording, and an AI Assistant that shipped in March 2026 to automate campaign setup and highlight accounts worth prioritizing. Apollo is used most by SDRs and account executives building outbound pipelines, recruiters and staffing agencies sourcing candidate contact details, and RevOps teams cleaning or enriching CRM records in bulk. Job seekers and consultants also use the standalone contact-search function to find the direct email or phone number of a hiring manager at a target company, the same underlying task innerTrack automates specifically for job applications. Apollo offers four plans: Free, Basic, Professional, and Organization, each priced per seat and cheaper when billed annually rather than month-to-month (see the pricing section below for exact figures). The Free plan keeps full database access with a capped monthly credit allowance, and the top Organization tier requires a minimum of three seats. Apollo runs as a web app plus a Chrome and Edge extension, with iOS and Android apps in early access. In March 2026 Apollo launched an AI Assistant it describes as the first fully agentic go-to-market operating system, adding AI lead scoring and buying-signal detection on top of the existing database and sequencing tools. The company has raised $251 million total, including a $100 million Series D led by Bain Capital Ventures at a $1.6 billion valuation, with Sequoia Capital and Y Combinator among its investors.
Free: full access to the 210M+ contact database, 5 mobile credits/mo, 10 export credits/mo, and fair-use unlimited email credits (about 250/day). Basic: $49/user/mo billed annually ($59/mo month-to-month). Professional: $79/user/mo billed annually ($99/mo month-to-month). Organization: $119/user/mo billed annually ($149/mo month-to-month), minimum 3 seats (from $357/mo). Extra credits cost $25 per 1,000/mo on annual plans and do not roll over; phone number reveals cost 8 credits each.
Apollo.io runs Free, Basic, Professional, and Organization plans. Billed annually, Basic runs about $49/user/month, Professional about $79/user/month, and Organization about $119/user/month with a 3-seat minimum (month-to-month pricing runs roughly 20% higher at $59, $99, and $149). Additional credit packs run $25 per thousand on the annual plans and don't carry into the next billing cycle, and unlocking a phone number uses 8 credits.
Yes. The Free plan gives full access to Apollo's entire contact and company database with basic search filters, 5 mobile credits and 10 export credits per month, and fair-use unlimited email sending (about 250 emails per day). It does not include the dialer's paid minutes or the higher monthly credit caps of paid plans.
Clay is the better pick for teams that want flexible, waterfall-style enrichment across 150+ data providers rather than one fixed database. Seamless.ai appeals to teams that want unlimited credits on a single paid plan. ZoomInfo is the enterprise-grade choice when direct-dial accuracy matters more than price.
Apollo owns the SMB and startup segment with a free tier and per-seat pricing starting around $49/month, while ZoomInfo targets enterprise buyers with deeper U.S. direct-dial data, stronger intent signals, and custom contract pricing that typically runs well above Apollo's list price. Choose ZoomInfo when data accuracy at scale outweighs cost; choose Apollo.io when budget and self-serve signup matter more.
Sign up for the Free plan at apollo.io, install the Chrome or Edge extension, and search the contact database by job title, company, or industry to pull your first list of prospects. From there you can launch an email or call sequence directly from a saved list, or connect Salesforce/HubSpot to sync enriched records into your CRM.
Apollo.io is a sales intelligence platform with a searchable B2B contact database, used by 500,000+ companies for prospecting and outreach.
Apollo.io, Inc. · Free tier available