Letterly

Letterly is an AI-powered speech-to-text mobile application designed for professionals, content creators, students, and anyone who prefers speaking over typing. The app converts spoken words into polished, well-structured written text across 90+ languages, with automatic language detection and the ability to switch languages mid-sentence without manual settings. Available on iOS, Android, Mac, Windows, and Apple Watch, with a web version and keyboard integration that lets users dictate directly into any app including Gmail, Slack, Notion, and iMessage. Over 300,000 users rely on Letterly to turn their voice into clear written communication.

How It Works

• Speak into the app or use the keyboard integration to dictate directly into any text field across your device
• AI processes and transcribes your speech in real time with support for recordings up to 90 minutes in duration
• Speaker separation identifies different voices in meetings, lectures, and interviews for clear attribution and structured notes
• AI rewrites raw transcripts into polished formats such as emails, meeting notes, social posts, summaries, or custom styles you define
• Record offline when internet is unavailable and sync across devices when connectivity returns
• Language auto-detection recognizes what language you are speaking and adjusts on the fly without manual switching

Key Features

• Unlimited recordings and AI rewrites with no imposed limits on duration or usage frequency
• 90+ language support with automatic detection and mid-sentence language switching
• Keyboard integration lets users dictate into Gmail, Slack, Notion, Telegram, WhatsApp, X, LinkedIn, and any other app that accepts text input
• Speaker-separated transcripts for meetings, lectures, interviews, and multi-person conversations up to 90 minutes
• AI rewrite library with built-in styles for emails, notes, tweets, summaries, articles, and a custom style builder for your own formats
• Offline recording so users can capture thoughts and ideas without internet connectivity
• Apple Watch companion app and home screen widgets for one-tap quick recording from any screen
• Zapier and webhook integrations for automated workflows connecting Letterly to over 7000 apps
• MCP (Model Context Protocol) integration connecting the app to Claude, ChatGPT, and Cursor for AI assistant access to your notes and transcripts
• Cross-device syncing and keyword search with topic tagging for organizing and finding recordings

Use Cases

• Professionals writing emails, meeting recaps, and project updates hands-free while walking or commuting
• Content creators producing social media posts, newsletter drafts, and article outlines from spoken ideas
• Journalists and researchers recording and transcribing interviews with speaker attribution for accurate quotes
• Students capturing lecture notes with speaker separation and searchable transcripts for exam review
• Journal writers and memoirists dictating entries and chapter drafts conversationally instead of typing
• Teams using the keyboard integration to dictate Slack updates, Notion pages, and project documentation hands-free

Pricing and Platform Details

Letterly offers a free tier for new users to get started at no cost. Paid plans with additional features are available but detailed pricing information is not published on the current landing page. The app runs on iOS, Android, Mac, Windows, Apple Watch, and the web, with cross-device syncing across all platforms. The company states that user data is never used to train AI models. Letterly maintains a 4.8 rating on the iOS App Store and 4.7 on Google Play, with an active Discord community for user support and feedback.