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Apollo.ioClose Deals & Manage Relationships

STOA rating

6.3 / 10

Openness

OPENNESS 4/10API 1/3 · Export 0/3 · Contract 2/2 · Integrations 1/2

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API

Apollo's pricing page says API access for advanced or custom integrations is available on Custom plans. apollo.io, checked 8 Oct 2026 (opens in a new tab)

Contract

Apollo offers monthly and annual billing; each subscription term renews for an equal period unless you give notice at least thirty days before it ends. apollo.io, checked 8 Oct 2026 (opens in a new tab)

What it does

Apollo.io gives sales teams access to a large database of business contacts alongside built-in email outreach, calling, and CRM sync tools.

Strengths

Massive B2B contact database covering a huge range of verified contacts
Combines prospecting and email outreach in one tool
Free plan lets you test core features before paying
Built-in email sequencing saves time on follow-ups
Strong filtering options to find your exact target customer

Weaknesses

Free plan limits are restrictive for active prospecting
Data accuracy can vary depending on industry or niche
Can feel overwhelming to set up if you're new to sales tools
Some advanced features like dialer are only on higher-priced plans

Key features

Search a large database of business contacts to find your ideal prospects
Send automated email sequences and follow-ups to leads
Track email opens, clicks, and replies to see what's working
Score and prioritize leads using AI-powered recommendations
Sync contact and deal data with your CRM like Salesforce or HubSpot
Use built-in calling and LinkedIn tools to reach prospects across channels

AI features

Apollo uses AI to help you write sales emails and personalize outreach messages based on prospect data. It also scores leads automatically so you can focus on the contacts most likely to respond.

STOA verdict

Apollo.io is a great fit for small businesses that need to find new customers and reach out to them without hiring a big sales team. You get a massive contact database plus email outreach tools all in one place, which saves you from paying for multiple tools. The main downside is that the free plan has tight limits, and you'll need to upgrade to a paid plan pretty quickly if you're doing serious prospecting.