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Pricing sourced from Apollo.io · Last verified March 2026
Apollo typically achieves 85-90% accuracy for standard email patterns (firstname@company.com) at US technology companies. Accuracy drops to 60-70% for smaller companies or non-standard email formats. It generally outperforms ZoomInfo for email discovery but lags behind specialized tools like Clearbit for international contacts.
Credits disappear quickly with serious prospecting. A campaign targeting 500 prospects monthly would consume most of the Professional plan's 5,000 email credits. Factor in email verification and follow-up sequences, and you might need the Organization plan ($149/month) or higher for sustainable volume.
Apollo's API is developer-friendly with 100-300 requests/minute on paid plans and comprehensive documentation. Rate limits are generous enough for most custom applications, and webhook support enables real-time integrations. However, some advanced features like intent data may have API limitations not present in the web interface.
AI builders and operators use Apollo.io to streamline their workflow.
Try Apollo.io Now →Enterprise B2B intelligence platform providing access to 321 million professional contacts and 104 million companies with AI-powered prospecting, intent data signals, and automated sales workflows to accelerate pipeline generation and revenue growth.
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