Apollo.io

What is Apollo?

Apollo.io is an all-in-one sales intelligence and commercial engagement platform for B2B prospecting. It combines a database of over 275 million contacts and 73 million companies with outbound automation tools, an integrated dialer, data enrichment, and conversational intelligence.

Apollo enables sales teams to find qualified prospects, launch multi-channel sequences (email, phone, LinkedIn), and manage the entire sales cycle from a single interface. Integrated AI assists with account research, lead scoring, and personalized message generation.

Key Features

B2B database with advanced filters

Access to 275M+ contacts and 73M+ companies with 60+ filters: job title, seniority, company size, industry, location, buying intent signals, funding rounds. Build hyper-targeted lists in minutes.

Automated multi-channel sequences

Multi-step campaigns via email, phone, and LinkedIn with conditional logic, A/B testing, and timing controls. Built-in throttling protects email deliverability.

Data enrichment

Waterfall enrichment of emails and phone numbers with verification scores. Automatic profile updates and job change detection to keep your lists current.

Integrated dialer and conversational intelligence

Cloud calls with recording, AI transcription, and automatic summaries. Conversation analysis to identify winning patterns. Available from the Professional plan onwards.

AI for prospecting

Intelligent agents for account research, personalized message writing, and next-action recommendations. AI significantly reduces sequence preparation time.

Analytics and reporting

Detailed dashboards on prospecting performance: open/reply rates, pipeline progression, and sales rep performance.

Integrations

Apollo offers 50+ integrations:

• CRM: Salesforce, HubSpot, Pipedrive, Zoho CRM, Microsoft Dynamics 365 (two-way sync)
• Email: Gmail, Outlook, SMTP providers
• Engagement: Outreach, SalesLoft
• Automation: Zapier, Make
• Chrome extension for LinkedIn and web browsing
• REST API on paid plans for custom integrations

Pricing

Prices shown are annual billing (Apollo bills in USD only):

• Free — $0: 10,000 email credits/month, 5 mobile credits, 2 active sequences, Chrome extension
• Basic — $45/user/month: Unlimited email credits, 75 mobile credits, 1,000 exports, unlimited sequences
• Professional — $73/user/month: 100 mobile credits, 2,000 exports, US dialer, A/B testing, intent data
• Organization — $110/user/month: 200 mobile credits, 4,000 exports, international dialer, SSO, advanced API (minimum 3 users)

Unused credits expire at the end of each month. A phone number consumes approximately 8 credits (vs 1 for an email). 14-day free trial on paid plans.

Strengths

• One of the largest B2B databases: 275M+ contacts with extremely precise targeting filters
• All-in-one platform at competitive pricing: data, email, dialer, and basic CRM in a single tool
• Generous free plan: 10,000 email credits/month and Chrome extension without a credit card
• Careful email deliverability: built-in warm-up, anti-spam tests, and reputation protection
• Intuitive interface: launch campaigns in under an hour
• Multi-channel sequences with conditional logic and A/B testing
• Integrated generative AI for message writing and account research

Weaknesses

• Inconsistent data accuracy: 80-88% in the USA but 60-73% in Europe, resulting in high bounce rates
• Restrictive credit system: monthly expiration, unpredictable consumption (8 credits per phone number)
• Unreliable phone numbers and expensive in credits — insufficient for intensive cold calling
• Limited LinkedIn automation: Apollo creates task reminders, not true automation
• Data quality declining outside the USA: French-speaking markets are less well covered
• Slow customer support on basic plans and reported difficulties canceling subscriptions

Our Take

Apollo.io is the most logical entry point for B2B SMEs and startups looking to launch outbound prospecting. The combination of a massive database, email sequencing tool, and generous free plan makes it an almost essential choice for teams of 1 to 50 sales reps.

Limitations appear with higher demands: data accuracy outside the USA, phone number reliability, and expiring credits are real friction points. For European teams, we recommend pairing Apollo with an email verification tool to compensate. Apollo excels in email outbound but isn't sufficient alone for a complete multi-channel strategy.

Average rating: 4.4/5 — based on G2 (4.7/5 across 9,000+ reviews), Capterra (4.5/5). Lower TrustPilot rating (2.2/5) related to billing complaints.

Frequently Asked Questions

Is Apollo suitable for the French market?

Apollo works in Europe but its database is stronger in the USA. For France, email accuracy is estimated at 60-73%. We recommend pairing Apollo with a verification tool and prioritizing company domain filters. For French phone numbers, supplement with Kaspr or Lusha.

What's the difference between Apollo and HubSpot?

Apollo excels in the upstream phase: finding prospects, enriching their data, and launching outbound sequences. HubSpot excels in the downstream phase: managing customer relationships, pipelines, and inbound marketing. Many teams use both with native two-way synchronization.

Do Apollo credits expire?

Yes, all mobile and export credits expire at the end of each month. To optimize: prioritize email searches (1 credit) vs phone (8 credits), use advanced filters before revealing contact details, and export in batches while checking quality. Email credits are unlimited on paid plans.