Apollo.io vs Mailbutler
A factual comparison of features, pricing, and capabilities.
Apollo.io
All-in-one sales intelligence and engagement platform combining a 275M+ contact database with automated sequences, email outreach, dialer, and AI-powered workflows for prospecting at scale.
Mailbutler
Mailbutler is an email extension for Gmail, Apple Mail and Outlook that adds email tracking, message templates, mail merge, smart follow-ups, AI compose, signatures, notes and tasks and team collaboration. Plans are per user per month billed in USD or EUR, with a free Starter plan.
Pricing comparison.
Monthly rates shown. Annual billing may offer discounts. Visit official sites for current pricing.
Feature comparison.
| Feature | Apollo.io | Mailbutler |
|---|---|---|
| B2B contact and company database (275M+ contacts) | ||
| Multi-channel sequences (email, phone, LinkedIn) | ||
| AI-powered email writing and optimization | ||
| Built-in dialer with call recording | ||
| Automated workflows and engagement rules | ||
| A/B testing for email sequences | ||
| Buying intent signals and job change alerts | ||
| Advanced lead scoring and filtering | ||
| Email deliverability tools and mailbox rotation | ||
| Conversation intelligence (Professional+) | ||
| Email tracking with real-time notifications | ||
| Message templates | ||
| Mail merge | ||
| Smart follow-ups | ||
| Smart compose and smart improve (AI) | ||
| Smart timing | ||
| Email assignments and collaborator status | ||
| Notes and tasks | ||
| Automations | ||
| Signature marketing |
Native integrations.
Apollo.io
Mailbutler
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Information gathered from official sources and may change. Pricing and features last verified 9/4/2026. Please visit the official websites for the most current information.