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Apollo.io

Apollo.io

The AI-powered B2B sales platform that replaces your data provider, outreach tool, dialer, enrichment engine, and CRM — 210M+ contacts, smart sequences, and AI agents, all in one platform.

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Akkio

Akkio

Transform Data into Predictive Power Without Coding.

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Quick Comparison: Apollo.io vs Akkio

A high-level overview of pricing, key strengths, and use cases to help you choose the right tool fast.

Features
Apollo.io
Akkio
Quick View
Apollo.io is an AI-powered B2B sales intelligence and engagement platform co-founded in 2015 by Tim Zheng and Ray Li in San Francisco. It gives sales…
Pricing
Freemium: Starting at $49/mo
Free Trial $49/mo
Key Strength
• 210M+ Contact Database with 65+ Advanced Filters — Search the world's largest B2B contact database by job title, seniority…
Best For
Apollo.io serves a wider range of sales teams than any other tool in its category — from first-time SDRs on…

Detailed Feature Breakdown

Go deeper into the specific capabilities, pros, cons, and integrations of both platforms.

Features
Apollo.io
Akkio
Overview

Apollo.io is an AI-powered B2B sales intelligence and engagement platform co-founded in 2015 by Tim Zheng and Ray Li in San Francisco. It gives sales teams access to 210M+ contacts and 30M+ companies with 65+ search filters, AI-powered multichannel outreach sequences, real-time data enrichment, inbound lead routing, conversation intelligence, and AI sales agents — all from one platform.

Backed by $251.3M in funding at a $1.6B valuation, trusted by 500,000+ companies from startups to Fortune 500s, and rated 4.7/5 from 9,015+ G2 reviews, it is the most widely used and reviewed all-in-one sales platform in the market.

Key Features

• 210M+ Contact Database with 65+ Advanced Filters — Search the world's largest B2B contact database by job title, seniority level, company size, industry, location, technology stack, funding stage, hiring signals, and buyer intent data to build hyper-targeted prospect lists for any ICP.

• AI-Powered Multichannel Sequences — Build automated outreach campaigns combining email, LinkedIn touches, phone calls, and task reminders in one coordinated sequence; includes A/B testing, send-time optimization, email deliverability guardrails (SPF/DKIM/DMARC checks, spam word detection, bounce management), and reply detection that auto-pauses follow-ups.

• AI Sales Agents (SDR Agent, Research Agent, Deals Agent, GTM Agent) — Four specialized AI agents automate the most time-intensive GTM tasks: the AI SDR Agent builds and runs outbound campaigns autonomously; the Research Agent enriches lead records with real-time company data; the Deals Agent prepares reps for every conversation with meeting intelligence; the GTM Agent orchestrates cross-functional go-to-market workflows.

• Inbound Intelligence (Visitor ID + Form Enrichment + Lead Routing) — Identifies anonymous website visitors, enriches form submissions with Apollo's full contact and company data in real time, and instantly routes qualified leads to the right rep via built-in calendar scheduling and automated nurture sequences — preventing hot inbound leads from going cold.

• Data Enrichment & CRM Cleansing — Continuously enriches and cleanses contact and company records across your CRM with always-fresh data from Apollo's network; supports Salesforce, HubSpot, and custom CRM enrichment workflows with job change alerts and signal-based re-engagement triggers.

• Conversation Intelligence & Deal Execution — AI-powered call recording, transcription, call summaries, next-step generation, pipeline boards, real-time deal alerts, conversation coaching dashboards, and meeting prep briefs keep every deal moving and every rep developing.

• Built-In Dialer & Email Infrastructure — Native click-to-call dialer with local presence, call recording, and voicemail drop; dedicated email sending infrastructure with deliverability guardrails and custom tracking domains — no external dialer or email service required.

• Apollo Academy + 24/7 AI Help + Community — Always-on educational resources including Apollo Academy courses, tutorials, weekly webinars, a community forum, and 24/7 AI chat support; live personalized onboarding included on all paid plans.

Pros
  • Permanently free plan with 100 credits, unlimited email sends (Gmail/Microsoft), and full database access — the most generous free tier in B2B sales intelligence, driving 500,000+ company signups
  • 4.7/5 from 9,015+ G2 reviews — the highest volume of verified reviews of any sales intelligence or outreach platform in the market
  • Replaces five separate tools (data provider, outreach platform, dialer, enrichment, CRM) — teams report 64% lower tech stack costs and 4x SDR efficiency improvement
  • Backed by $251.3M from Bain Capital Ventures, Sequoia Capital, and Tribe Capital at $1.6B valuation — financial stability and R&D investment that smaller bootstrapped tools cannot match
  • Four specialized AI agents (SDR, Research, Deals, GTM) automate the most time-intensive parts of the sales workflow with no additional tool purchase
  • Full compliance stack: GDPR, SOC 2, CCPA, ISO/IEC 27001, CASA Tier 2, CPRA, EU-US DPF, PCI DSS — the broadest enterprise-grade compliance certifications of any tool in its category
  • Job change alerts and intent signals surface the highest-probability buyers before competitors reach them
    Cons
    • Credit system complexity — phone credits cost 8x more than email credits, credits expire at the end of each billing cycle (no rollover on standard plans), and overage credits at $0.20 each with a 250-minimum purchase add unexpected costs at volume
    • Organization plan requires a minimum of 3 users ($357/month annual minimum) — teams smaller than 3 seats cannot access advanced features like AI agents and custom reporting without paying per-user pricing
    • Data accuracy is strong globally but mixed for mobile phone numbers outside the US and Western Europe — European teams specifically report lower phone coverage than Kaspr or Cognism
    • Customer support quality on lower tiers receives consistent criticism across G2 and independent reviews — free and Basic plan users report slow response times and bot-first support experiences
    • Feature depth in some areas (call intelligence, advanced deal management) lags behind dedicated point solutions like Gong, Chorus, or Outreach — teams with mature revenue operations may still need specialist tools alongside Apollo
    • Historical data breach in 2021 (240M records exposed) remains a reputational concern for enterprise procurement teams conducting security due diligence, despite subsequent SOC 2 and ISO 27001 certification
      Best For

      Apollo.io serves a wider range of sales teams than any other tool in its category — from first-time SDRs on the free plan to Fortune 500 enterprise GTM teams on custom Organization plans.

      • SDRs and outbound sales reps at growth-stage companies — use Apollo's 210M+ database with 65+ filters to build highly targeted prospect lists, launch automated multichannel sequences, and manage call tasks from one platform without juggling multiple tool subscriptions.

      • Founders and solo sales operators doing outbound — start on the free plan with 100 credits and unlimited email sends to validate ICP fit before investing in paid prospecting; upgrade to Basic at $49/mo only when volume demands it.

      • Revenue operations and sales managers — use Apollo's enrichment workflows to keep CRM data fresh, leverage AI agents to automate SDR-level tasks, and use conversation intelligence and coaching dashboards to identify performance gaps and replicate top-rep behaviors across the team.

      • Enterprise GTM teams consolidating tech stacks — replace a 5-tool stack (ZoomInfo + Outreach/SalesLoft + Gong + Clearbit + Salesforce enrichment) with Apollo's Organization plan and AI agents to reduce per-rep tool costs while centralizing data, outreach, and deal intelligence in one governed platform.

      Pricing Details

      Free ($0/mo, unlimited users): 100 credits total (not per month), unlimited B2B email sends (Gmail and Microsoft only), basic sequence automation, access to full 210M+ contact database with limited filters, basic email open/click tracking, limited CSV export, HubSpot and Salesforce basic integrations, Apollo Academy access, 24/7 AI chat support.

      Basic ($59/mo monthly, $49/user/mo billed annually): 5,000 credits/month, unlimited email sends (all email providers), full sequence automation with A/B testing, all 65+ database filters, email deliverability center, job change alerts, buy intent data (basic), advanced integrations (HubSpot, Salesforce, Pipedrive, Outreach, SalesLoft), CSV export (unlimited), LinkedIn extension, click-to-call dialer, call recording, live onboarding, 24/7 AI chat + email support.

      Professional ($99/mo monthly, $79/user/mo billed annually): 10,000 credits/month, everything in Basic plus AI-assisted email writing, advanced filters and intent signals, email reply tracking, conversations (call intelligence), deal management, advanced reporting, custom fields, sequence analytics, video prospecting, AI research assistant, LinkedIn automation steps in sequences, priority support.

      Organization ($149/mo monthly, $119/user/mo billed annually, minimum 3 users): 15,000 credits/month, everything in Professional plus AI SDR Agent, AI Deals Agent, AI GTM Agent, inbound visitor identification, real-time form enrichment, lead routing and scheduling, advanced CRM enrichment and cleansing, custom roles and permissions, SSO (SAML), advanced security settings, data privacy controls, custom reporting, dedicated onboarding, phone support, CSM access.

      Unique Features

      Apollo.io's competitive position rests on three structural advantages that no single competitor has simultaneously replicated: database scale, product breadth, and product-led growth velocity.

      • 210M Contact + 30M Company Database With Continuously Refreshed Intent Data — Apollo's database is among the largest in B2B sales intelligence, and unlike static databases, Apollo refreshes contact and company data continuously using AI-driven verification. The addition of buyer intent signals — tracking which companies are actively researching topics relevant to your product — lets Apollo users prioritize outreach to the accounts most likely to convert right now, not just the accounts that fit the ICP. No tool at Apollo's price range offers both this scale and intent data natively.

      • Four Specialized AI Agents Replacing Human Labor Across the GTM Funnel — Apollo's AI SDR Agent, Research Agent, Deals Agent, and GTM Agent are not generic chatbots — they are purpose-trained agents that automate specific GTM tasks: building and running outbound campaigns (SDR Agent), enriching and briefing reps before meetings (Research Agent and Deals Agent), and orchestrating cross-functional go-to-market workflows (GTM Agent). The depth of task automation across all four stages of the funnel — find, engage, meet, close — is matched only by custom AI-agent stacks costing 5x+ the price.

      • Inbound + Outbound in One Platform (Visitor ID + Form Enrichment + Lead Routing) — Apollo is one of the only platforms in its price range that handles both outbound prospecting and inbound lead capture in a single workflow. Anonymous visitor identification surfaces the companies behind your website traffic, form enrichment completes lead records in real time, and instant lead routing with built-in scheduler ensures hot inbound leads are contacted within minutes. Most sales teams run a separate tool for each of these functions — Apollo's unification produces the 70% increase in lead conversion its customer base reports.

      • Product-Led Growth at $1.6B Scale — Apollo's free plan is genuinely functional — not a feature-crippled demo — and it is the reason 500,000+ companies have adopted it without a sales call. This PLG flywheel funds continuous product investment: Apollo grew ARR 40% in 2024 and reported 500% growth on its AI platform in 2025, enabling R&D velocity that bootstrapped competitors simply cannot match.

      Integrations

      Apollo.io integrates with every major CRM, sales engagement platform, marketing automation tool, and communication platform used by modern B2B sales and marketing teams.

      • Salesforce & HubSpot (Deep Bidirectional Native Sync) — Full two-way sync with Salesforce and HubSpot including contact creation, deal and opportunity management, activity logging, sequence enrollment triggers, custom field mapping, and advanced CRM data enrichment that continuously refreshes stale contact and company records; available from Basic plan with advanced features on Organization.

      • Outreach, SalesLoft & Marketo (Sales Engagement + Marketing Automation) — Native integrations with Outreach and SalesLoft allow teams already on those platforms to use Apollo purely as a data layer, pushing enriched contacts into existing sequences; Marketo and Sendgrid integrations connect Apollo's data and intent signals to marketing automation and email delivery infrastructure.

      • LinkedIn (Chrome Extension + Sequence Steps) — Apollo's LinkedIn Chrome extension enriches any LinkedIn profile with Apollo data in one click; Professional plan and above adds LinkedIn automation steps (connection requests, messages, InMail) directly inside Apollo sequences, enabling true multichannel outreach without a separate LinkedIn tool.

      • Zapier, Webhooks & Full API (Organization and Custom Plans) — Zapier integration connects Apollo to 5,000+ external tools; real-time webhooks fire on lead events (new contact, email opened, reply received, job change detected) for custom GTM stack integration; the full REST API is available on Organization and Custom plans for engineering-led teams building Apollo's data and engagement layer into proprietary workflows.

      Frequently Asked Questions

      Expert Verdict

      Final Analysis: Which is better?

      After testing both platforms: choose Apollo.io (Freemium: Starting at $49/mo) if you prioritize Apollo.io serves a wider range of sales teams than any other tool in its category.. Choose Akkio (Free Trial $49/mo) if you need . Both are reliable AI tool options, but they optimize for different user profiles.

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