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Reply.io vs Letterhead
Side-by-side comparison of features, pricing, and ratings
Pricing
Paid
Contact Sales
Plans
$59/mo
$99/user/mo
$166/user/mo
From $300/mo
—
Popularity
3.7k views
7.2k views
Skill Level
Intermediate
Intermediate
API Available
Platforms
WebAPI
WebAPI
Categories
📈 Marketing & SEO
📈 Marketing & SEO✍️ Writing & Content
Features
Multi-channel sequences (email, voice, LinkedIn, SMS)
AI Email Writer and Reply Detection
AI Sales Agent (Jason) for autonomous outreach
AI Email Warm-up and deliverability monitoring
Unlimited email sending accounts
Built-in CRM with pipeline management
Intent-based lead scoring (LeadFuze integration)
A/B testing for subject lines and content
Real-time analytics and reporting
Personalized video messages via GIF
Team collaboration with shared inbox
Meeting booker integration
AI agents for content curation and audience segmentation
Global lockable drag-and-drop email templates
Unified portfolio analytics with AI recommendations
Portfolio management with workspaces and governance
Direct ads, programmatic, house promotions, conversion CTAs
Unified audience view with segments, journeys, triggered flows
Dedicated IP addresses with automated migration and warmup
Deliverability reporting and repair tools
Approval flows for newsletter production
Versioned REST API with webhooks
Native MCP server for AI agents
Transactional email support (Suite only)
Works with existing ESP (Studio mode)
Automatic audience migration and warmup (Suite only)
Revenue tracking per send across all newsletters
Integrations
Salesforce
HubSpot
Pipedrive
Copper
Zoho CRM
Freshsales
Microsoft Dynamics 365
LeadFuze
Zapier
Slack
Webhooks
Outreach (via Zapier)
REST API
MCP server