Apollo
Summary
Stitching together a prospecting tool, a sequencer, an enrichment API, and a dialer into a single workflow is where most sales stacks quietly break — Apollo exists to collapse that stack into one system.
Apollo combines a contact and company database, AI-assisted search filters, multi-touch email and call sequences, waterfall enrichment, and pipeline analytics under one login. The database scale and intent signal coverage are what most teams cite first — the vendor states over 600,000 companies use the platform. Where cracks show: data freshness at the edge of niche verticals produces bounce rates that force supplemental enrichment runs, and the sequencing builder, while functional, hits its ceiling when teams need branching logic more granular than basic A/B splits. Teams running high-volume outbound at enterprise scale often find they still need a dedicated deliverability layer sitting in front of Apollo's sending infrastructure.
Bottom line: Apollo earns its place as the core stack for a B2B SDR team running prospecting, enrichment, and sequencing in one place — but teams with complex conditional sequence logic or enterprise deliverability requirements will be bolting on additional tools within six months.
Pricing Plans
Subscription- Free Tier
- 900 credits per seat per year granted monthly; AI Assistant limited to 5 chats
Free
900 credits per seat per year, granted monthly; AI Assistant 5 chat limit; basic filters and sequences
- AI Assistant (5 chat limit)
- AI Research
- 2 Sequences
- Basic Filters
Basic
30,000 credits per seat per year; AI Assistant introductory free; unlimited sequences; advanced filters; CRM integrations
- AI Research & AI Lead Scoring
- Unlimited Sequences
- Deliverability Suite & Email Warmup
- Waterfall Enrichment
- 3 Meetings Events
Professional
48,000 credits per seat per year; unlimited sequences & A/Z testing; automated workflows; call recordings (4,000 mins)
- Unlimited Sequences & A/Z Testing
- Automated Workflows
- Call Recordings & AI Insights (4,000 mins)
- 6 Meetings Events
Organization
72,000 credits per seat per year (min 3 seats); unlimited projects; custom reports; SSO; use your own LLM API key
- Unlimited Projects
- Customizable Reports & Dashboards
- Advanced Security Configurations
- Single Sign-on (SSO)
View full pricing on apollo.io →
Pricing may have changed since last verified. Check the official site for current plans.
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Pros
Sign in to edit- Waterfall enrichment across multiple data sources, so contact records fill in where a single-provider lookup would return blank fields — reducing the manual gap-filling that kills list quality before a sequence even starts.
- Intent signal filters inside the prospecting search, so reps can surface accounts showing active buying behavior rather than cold-filtering by firmographic data alone.
- Native dialer, email sequencer, and CRM sync under one login, which means teams avoid the integration debt of three separate tools passing data between each other through Zapier hacks.
- AI-assisted sequence copy and prospecting research, so SDRs spend less time on first-draft messaging and more time on replies — the vendor reports a 75% meeting increase for at least one customer reducing manual work.
- API and Chrome extension access, so RevOps teams can pull enrichment data into their own pipelines or trigger Apollo workflows from external systems without rebuilding the data layer.
Cons
Sign in to edit- Contact data quality degrades noticeably in niche verticals and smaller international markets — bounce rates climb, and teams running outbound into those segments end up purchasing a secondary enrichment source anyway, which defeats the single-stack argument.
- Sequence branching logic is limited to basic splits; teams that need to route prospects down different paths based on what the previous email returned (opened, clicked, replied with a specific intent) hit the ceiling fast and move to a dedicated sales engagement platform like Outreach or Salesloft.
- High-volume senders find Apollo's sending infrastructure alone does not protect deliverability at scale — inbox placement degrades without a separate warm-up or deliverability monitoring layer bolted on, adding a tool and cost that partly erodes the stack-consolidation pitch.
- Advanced workflow automation and certain enrichment credit volumes are paid-only features, so teams that start on the free tier and build processes around it face a forced architecture review when they hit the credit wall mid-campaign.
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About
- Platforms
- Web
- API Available
- Yes
- Self-Hosted
- No
- Last Updated
- 2026-06-13T13:24:21.210Z
Best For
Who it's for
- B2B sales teams needing prospecting and outreach automation
- Companies requiring lead enrichment and intent signals
- Teams integrating with Gmail, Salesforce, and other CRMs
- Users wanting dialer and workflow automation features
What it does well
- Prospecting and lead research with AI filters and intent data
- Building and automating multi-touch email and call sequences
- Enriching contacts and companies via waterfall and API methods
- Managing pipeline with CRM integrations and analytics
- Converting inbound website visitors through enrichment and forms
Integrations
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Frequently Asked Questions
- Is Apollo free?
- Apollo is a paid tool. A 14-day free trial is available.
- Is Apollo open source?
- No — Apollo is a closed-source tool. Source code is not publicly available.
- Does Apollo have an API?
- Yes. Apollo exposes a developer API. See the official documentation at https://apollo.io for details.
- What platforms does Apollo support?
- Apollo is available on: Web.
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Curated lists that include this category
Apollo is a web-based B2B sales platform that connects contact and company discovery, outreach sequencing, data enrichment, and pipeline management without requiring separate tools to be stitched together. The core workflow runs from search — using AI filters and intent signals to build a list — through enrichment, into an automated multi-touch sequence of emails and calls, and out to CRM sync. The vendor describes this as covering both outbound prospecting and inbound lead qualification, with a Chrome extension that surfaces Apollo data while browsing LinkedIn or company websites.
The differentiating feature the vendor emphasizes is Apollo Data, described as one of the larger B2B contact databases, combined with waterfall enrichment — meaning Apollo queries multiple data sources in sequence and fills gaps where a single provider would return nothing. The AI Assistant layer sits across search, prospecting research, and sequence copy, reducing the manual work of building lists and drafting first-touch messages. The vendor cites customer outcomes including a 70% increase in sales leads and a 4x improvement in SDR efficiency, though these figures reflect specific customer cases and will vary by team and segment.
Apollo fits teams that want to reduce the number of point solutions they maintain — replacing a standalone enrichment API, a separate sequencer, and a dialer with one platform. The wall appears when outreach volume scales to the point where inbox placement becomes the constraint: Apollo’s sending infrastructure is not a dedicated deliverability platform, and high-volume senders report needing to layer a warm-up or deliverability tool on top. Sequence branching based on what a prospect did in the previous step is limited compared to dedicated sales engagement platforms, which matters for teams running sophisticated conditional cadences.
On the integration side, Apollo connects to Gmail, Salesforce, and other CRMs, and the vendor describes an API and MCP (Model Context Protocol) layer for teams that want to pull enrichment data or trigger workflows programmatically. The Chrome extension handles real-time contact lookup outside the platform. Workflow automation is available natively, though advanced automation features are paid-only.