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AiSDR vs Letterhead
Side-by-side comparison of features, pricing, and ratings
Pricing
Contact Sales
Contact Sales
Plans
$250/mo
$900/mo
$2,500/mo
—
Popularity
5.7k views
7.2k views
Skill Level
Intermediate
Intermediate
API Available
Platforms
WebAPI
WebAPI
Categories
📈 Marketing & SEO
📈 Marketing & SEO✍️ Writing & Content
Features
Intent-first targeting with real-time web signals
AI Strategist for personalized outreach strategies
AI-researched emails and LinkedIn messages
Multi-channel campaigns (email + LinkedIn + calls)
Adaptive sequences based on prospect behavior
Native HubSpot and Salesforce CRM sync
Aircall integration for call logs and scripts
Real-time stats dashboard (meetings, replies, conversion)
Domain reputation protection (anti-spam policy)
Deep web research before outreach
Meeting booking automation for qualified leads
Prospect finding across 300M+ lead database
Custom prompt control for tone and messaging
AI videos in messages (Scale plan)
Website visitor tracking and outreach (Scale plan)
Global and lockable drag-and-drop email templates
AI agents for content curation and audience segmentation
Unified analytics across newsletters 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
Zapier integration
Versioned REST API with webhooks
Native MCP server for AI agents
Transactional email support (Suite)
Works with existing ESP (Studio mode)
Automatic audience migration and warmup (Suite)
Integrations
HubSpot
Salesforce
Aircall
Gmail
Outlook
LinkedIn
Slack
Calendly
Zapier
REST API
Webhooks
MCP server