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Apollo.io

AI prospecting platform with 240M+ B2B contact database

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apollo.io Freemium

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Pricing

Freemium

Category

Marketing

In the database since

Oct 2026

Overview

About Apollo.io

Apollo is an AI-powered go-to-market (GTM) platform for sales and marketing teams. Go-to-market means the work of finding buyers and winning them. Its database holds over 240 million contacts and 30 million company accounts, searchable by role, title, industry, and size. Built-in AI agents research accounts, write outreach emails, and book meetings, while buying signals like job changes flag warm prospects. Sequences, a dialer, and 200+ integrations connect it to common CRMs (customer record systems) and inboxes. Paid tiers add credits and seats; check apollo.io for current limits.

Key Features

1. 240M+ Contact Database

Search over 240 million contacts and 30 million accounts by filters like title, industry, and company size. Records refresh regularly to stay current.

2. AI Prospecting Agents

AI agents learn your ideal buyer profile, research accounts, and draft outreach messages. They keep working in the background and improve with feedback.

3. Email Sequences

Build multi-step email follow-up campaigns that send on a schedule. Replies route back so reps can respond fast and keep conversations moving.

4. Power Dialer

Call prospects from inside Apollo with a built-in dialer on paid plans. Calls log automatically, and recordings feed back into contact records.

5. Buying Signals

Intent data, job changes, and website visits show which accounts are ready to buy. Reps can prioritize warm leads instead of cold lists.

6. Waterfall Enrichment

Enrichment fills missing emails and phone numbers by trying several data sources in order. This raises hit rates without buying extra tools.

7. CRM and Inbox Integrations

Over 200 integrations sync contacts, activities, and meetings with CRMs like Salesforce and HubSpot. Browser and Gmail extensions bring Apollo anywhere.

Frequently Asked Questions (FAQ)

What is Apollo used for?

Apollo is used to find B2B buyers and turn them into customers. Sales teams use it for prospecting, email outreach, calling, and tracking pipeline in one place.

How does Apollo work?

You search Apollo's contact database with filters, build lists, and launch email sequences or calls. Credits are spent to reveal emails and phone numbers, and activity syncs to your CRM.

How accurate is Apollo's data?

Apollo refreshes its database regularly, but no contact database is perfect. Test a small batch first, watch bounce rates, and verify key contacts before big campaigns.

Does Apollo replace a CRM?

Apollo is not a full CRM. It handles prospecting and outreach well, but most teams still sync results into a CRM like Salesforce or HubSpot for deal tracking.

Can Apollo help with email deliverability?

Apollo offers domain warming, inbox rotation, and reputation monitoring on paid plans. These tools help outreach emails land in inboxes instead of spam folders.

Conclusion

Apollo combines a 240M+ contact database, AI prospecting agents, email sequences, a dialer, and buying signals in one platform. It suits B2B sales teams that want prospecting and outreach without stitching together many tools. The free tier covers light prospecting, while paid seats add credits, dialer minutes, and integrations. Check apollo.io for current pricing and credit limits before you commit.

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