What Is LetterAtlas?

LetterAtlas is an AI-powered newsletter reader that turns long email newsletters and blog updates into short, actionable summaries inside your Gmail inbox. No digests, no fluff—just the insights you need.

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Why LetterAtlas?

  • AI newsletter summarizer
  • Smart inbox for Gmail
  • Privacy-first (no data resale)
  • Supports Substack, Beehiiv, Ghost, RSS & blogs
  • Works on mobile and desktop
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Key Features

1. Instant Summaries

Get a clear TL;DR for every newsletter. Save hours each week.

2. One Focused Index

All newsletters arrive in a dedicated folder so important mail stays visible.

3. Focus Mode

Mute noisy senders, star must-reads, or set weekly digests on autopilot.

4. Searchable Archive

Full-text search across all newsletter issues with keyword highlights.

5. Secure by Design

End-to-end encryption; we never sell or train models on your data.
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How LetterAtlas Works

  1. Connect Gmail (OAuth; no passwords).
  2. Select newsletters to summarize.
  3. LetterAtlas runs proprietary LLM models.
  4. A concise summary appears above each email.
  5. Review, archive, or share—all in one click.
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Who Uses LetterAtlas?

  • Founders & executives
  • Product managers
  • Researchers & analysts
  • Students
  • Anyone who hates inbox chaos
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LetterAtlas vs. Alternatives

LetterAtlas
Substack Reader
Beehiiv Digest
Feedly
AI summaries
✅
❌
❌
❌
Gmail integration
✅
❌
❌
❌
Privacy-first
✅
✅
✅
❓
Works with any sender
✅
Substack only
Beehiiv only
RSS only
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Frequently Asked Questions

Is LetterAtlas free?

Core features are free. Pro adds custom prompts and longer history.

Does it delete my newsletters?

Never. Original content stays in your inbox.

Which languages are supported?

English now; Spanish, German, and French coming soon.

Can I customize the summaries?

Yes—Pro users can set custom summary templates and tones.
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Get Started

  1. Visit letteratlas.com
  2. Click Get Started
  3. Enjoy a cleaner inbox in under 60 seconds.
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SEO Keywords: newsletter summarizer, AI newsletter summarizer, email newsletter summary, Gmail newsletter management, smart inbox, summarize newsletters automatically, Substack summary, Beehiiv summary
Last updated: 2025-06-19