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HomeCompareWriteMage vs Letterhead

WriteMage vs Letterhead

Side-by-side comparison of features, pricing, and ratings

Live tool data as of 2026-07-07
Reviewed by our team on 2026-07-03
Saved

At a glance

DimensionWriteMageLetterhead
Pricingfreemium · from Free (Beta) $0/mocontact
Best forMac power users who want ChatGPT in every app without switching windows, Writers seeking context-aware AI writing help across multiple documentsNewsletter teams managing multiple newsletters or brands, Media companies and publishers scaling email operations
Standout featuresFloating window above any macOS app (like Spotlight) · Context-aware ChatGPT integration with session memory · Local chat history saved with labels for retrievalAI agents for content curation and audience segmentation · Global lockable drag-and-drop email templates · Unified portfolio analytics with AI recommendations
Viability score77/10075/100
APINoYes

WriteMage is the stronger pick for mac power users who want chatgpt in every app without switching windows; Letterhead fits better for newsletter teams managing multiple newsletters or brands.

Built from live tool data, last verified 2026-07-07.

WriteMage
WriteMage

Context-aware ChatGPT assistant that floats above any macOS/iOS app.

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Letterhead
Letterhead

Email operating system for teams managing multiple newsletters

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Pricing
Freemium
Contact Sales
Plans
$0/mo
$58.99
$119.99/yr
$142.49/yr
—
Popularity
0 views
7.2k views
Skill Level
Intermediate
Intermediate
API Available
Platforms
DesktopMobile
WebAPI
Categories
✍️ Writing & Content⚡ Productivity
📈 Marketing & SEO✍️ Writing & Content
Features
Floating window above any macOS app (like Spotlight)
Context-aware ChatGPT integration with session memory
Local chat history saved with labels for retrieval
Prompt Editor GUI for customizing and adding prompts
Native iOS keyboard integration across all apps
Bring your own OpenAI API key option
Option for managed API (Personal plan, 750k words/mo)
Works on macOS 12+ Intel and Apple Silicon
Works on iPhone and iPad (iOS 15+)
No copy-paste required: type anywhere and invoke
Beta is free; launch sale 25% off with code BETA
Lifetime deal available (Basic plan)
Privacy-focused: no telemetry, only connects to OpenAI
Supports up to 4 devices (Personal plan)
Automatic version check at launch only
AI agents for content curation and audience segmentation
Global lockable drag-and-drop email templates
Unified portfolio analytics with AI recommendations
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 agent integrations
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
Portfolio management with workspaces and governance
Integrations
Zapier

Who should pick which

  • Solo founder
    Pick: WriteMage

    WriteMage provides ChatGPT assistance across all apps without copy-pasting, ideal for a solo founder handling writing, coding, and research, with a free beta and affordable lifetime deal.

  • Newsletter team manager
    Pick: Letterhead

    Letterhead's AI agents, portfolio analytics, and governance features are built for teams managing multiple newsletters, with the new MCP server enabling custom AI integrations.

  • Freelance writer
    Pick: WriteMage

    The floating ChatGPT window helps writers get inline suggestions in any text editor, and the local chat history with labels aids in organizing research across projects.

  • Media company CTO
    Pick: Letterhead

    Letterhead's Studio mode layers on top of existing ESPs, offering portfolio revenue management, deliverability tools, and versioned API for engineering teams, with the MCP server enabling AI agent sync.

  • Developer needing code help
    Pick: WriteMage

    WriteMage can provide inline code assistance in any IDE or text editor on macOS, with session memory for context, and supports BYO API key for flexibility.

Frequently Asked Questions

Which is better, WriteMage or Letterhead?

The best choice between WriteMage and Letterhead depends on your specific use case — we compare them independently on features, current pricing, integrations, and real-world signals (with an on-demand sentiment scan available for each). See the side-by-side breakdown above to match them to your needs.

What are the main differences between WriteMage and Letterhead?

The key differences include pricing model, feature set, platform support, and skill level requirements. Review the full comparison on RightAIChoice for a detailed breakdown.

Is there a free version of WriteMage or Letterhead?

Check the pricing section in the comparison for the latest pricing details on both tools, including free tiers, trial options, and paid plans.

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Explore each tool further

WriteMage
View WriteMage reviewWriteMage alternatives
Letterhead
View Letterhead reviewLetterhead alternatives

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