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About
Letterly AI is a powerful speech-to-text application that goes far beyond simple transcription. You speak your raw, unstructured thoughts into the app and within seconds receive well-written, formatted text tailored to your desired output — whether that's a professional email, a social media post, a to-do list, or a journal entry. The app leverages AI trained by linguists to offer 25+ rewrite options including formal emails, friendly messages, bullet-point summaries, X (Twitter) posts, and more. Users can even create their own custom rewrite prompts. Letterly supports 90+ languages with automatic detection and offers translation into any language. Practical features like offline recording, screen-off background recording, a home screen widget, tags for organization, and integrations via Zapier and custom webhooks make it a comprehensive productivity tool. Notes sync seamlessly across all devices through native iOS and Android apps, a web app, and a Mac desktop app. With over 300,000 users ranging from content creators and entrepreneurs to students and everyday note-takers, Letterly is designed to eliminate writer's block, save time on written communication, and help people capture ideas on the go without friction.
Key Features
- AI-Powered Speech-to-Text: Captures unstructured voice input and instantly converts it into polished, readable text using advanced AI trained by linguists.
- 25+ Rewrite Options: Choose from over 25 output formats — formal emails, friendly messages, tweet-style posts, to-do lists, structured notes — or create your own custom prompt.
- 90+ Language Support with Translation: Automatically detects spoken language across 90+ languages and can translate your speech output into any target language.
- Offline & Background Recording: Record voice notes without internet access or with the screen off, making it ideal for use on the go, during commutes, or in low-connectivity areas.
- Integrations & Cross-Device Sync: Send notes to Google Docs, Notion, and other tools via Zapier or custom webhooks. Notes sync across iOS, Android, web, and Mac apps seamlessly.
Use Cases
- Capturing spontaneous ideas, to-do lists, and shopping lists hands-free during daily activities like walks or commutes.
- Quickly drafting professional emails or structured feedback by speaking naturally, reducing writing time from minutes to seconds.
- Creating social media content, articles, and newsletter drafts by dictating ideas and letting AI format them into ready-to-publish posts.
- Maintaining a daily voice journal to track thoughts, emotions, and experiences, easily building a consistent habit.
- Taking meeting notes or brain-dumping research ideas on the go, with automatic structuring into organized, readable summaries.
Pros
- Saves Significant Writing Time: Users report reducing writing tasks from 15+ minutes to under 2 minutes by speaking instead of typing, especially for emails and structured notes.
- Versatile Output Formats: The wide range of rewrite options and the ability to define custom prompts make it suitable for nearly any writing scenario.
- Works Offline and Cross-Platform: Offline recording and native apps for all major platforms ensure Letterly is accessible anywhere, anytime, on any device.
Cons
- Advanced Features Behind Paywall: Some of the more powerful rewrite options and higher usage limits are likely restricted to paid plans, limiting free-tier functionality.
- Primarily Voice-Input Dependent: The tool is optimized for voice input, which may not suit users in environments where speaking aloud isn't practical.
Frequently Asked Questions
What is Letterly AI?
Letterly AI is a voice-to-text application that converts your spoken words into polished, structured text. It goes beyond transcription by offering 25+ AI-powered rewrite formats like emails, social posts, to-do lists, and journal entries.
What platforms does Letterly support?
Letterly is available on iOS, Android, web browser, and macOS. Notes sync across all devices automatically.
Does Letterly work offline?
Yes. Letterly supports offline recording so you can capture voice notes without an internet connection and have them processed when you reconnect.
What languages does Letterly support?
Letterly supports 90+ languages with automatic detection. It can also translate your voice input into any target language.
Can I integrate Letterly with other apps?
Yes. Letterly supports integrations with tools like Google Docs and Notion via Zapier or custom webhooks, allowing you to send notes directly to your preferred apps.
