Letterly vs Sudowrite

Letterly turns spoken words into polished text you can paste, send, or save. You record on your phone, Mac, Windows, or browser, and the app transcribes what you said, then runs it through rewrite styles tuned for emails, meeting recaps, journal entries, or social posts. It sits between a voice memo app and a writing assistant, built for people who think faster out loud than on a keyboard.

Most dictation tools either transcribe or summarize, but rarely both in the same workflow. Letterly layers three jobs: system-wide dictation that pipes text into Gmail, Slack, and Notion; standalone note capture with rewrite prompts; and long-form meeting recording with speaker-separated transcripts up to 90 minutes. The Letterly MCP connector lets Claude, ChatGPT, or Cursor search and rewrite your stored notes without leaving those tools.

Freelancers, managers, and creators who capture ideas while walking or between calls are the clearest fit. A product manager dictating Slack updates, a writer turning walk monologues into blog drafts, or anyone who records lectures and wants labeled speaker notes can stay in one app instead of chaining separate transcription and rewrite tools.

Sudowrite is an AI writing partner designed especially for novelists and creative writers. It helps you write faster and overcome writer's block by suggesting the next 300 words in your voice, expanding scenes, and providing vivid descriptions that bring your story to life. The tool guides you from idea to outline to full draft with features like Story Bible, Brainstorm, and Canvas, which help organize plot points, character arcs, and themes.

Sudowrite also offers revision assistance with Rewrite and actionable Feedback to improve your drafts. It supports over 30 languages and lets you visualize characters and worlds with AI-generated art. Created by writers for writers, Sudowrite aims to make storytelling more enjoyable and productive.