Letterly: AI Speech-to-Text App for Notes & Emails

Letterly turns your spoken thoughts into polished, structured text—from notes and emails to social posts—using AI-powered transcription and rewriting.

AI Text Generator AI Speech-to-Text AI Transcriber AI Notes Generator AI Social Media Post Generator AI Email Generator AI Writing Assistants

Overview Capabilities Features Use Cases Pricing Pros & Cons How to Use FAQs

Overview

Letterly is a mobile-first AI app that reimagines what voice-to-text technology can do. Rather than just transcribing your words verbatim, it intelligently restructures your speech into whatever format you need: clean notes, professional emails, catchy social media posts, meeting recaps, or simple to-do lists. Just talk naturally about your ideas, and let the AI handle the heavy lifting of organizing and polishing your thoughts into usable text. Built for speed and flexibility, Letterly supports over 90 languages, works offline, and syncs seamlessly across devices so your notes are always accessible. With tagging for organization, webhook integrations to connect with your other favorite tools, and both dark and light modes, it's designed to fit naturally into busy workflows. Whether you're brainstorming on the go, drafting a quick email, or capturing a journal entry before bed, Letterly aims to eliminate the friction between having a thought and having it written down clearly.

Capabilities & Features

Speech-to-text
Transcription
AI writing assistant
Note-taking
Voice journaling
Content creation
Productivity
Organization
Mobile app

Core Features

AI-powered speech-to-text conversion
Multiple rewrite formats including notes, emails, and social posts
Tag-based note organization
Webhooks for connecting notes to other tools
Support for 90+ languages with auto-detection
Offline recording and cross-device syncing

Use Cases

Jotting down quick notes, to-do lists, and shopping lists
Drafting messages, emails, and comments on the fly
Creating content like social posts, newsletters, and scripts
Keeping a voice-based journal for thoughts and gratitude
Summarizing meetings without manual note-taking

Best For

Students
Busy professionals
Content creators
Journalists
Entrepreneurs
Anyone who thinks faster than they type

Pros

•Converts messy speech into polished, ready-to-use text
•Flexible rewrite options cover many everyday writing needs
•Works offline, so recording isn't dependent on connectivity
•Broad language support with automatic detection
•Syncs across devices for easy access anywhere

Cons

•Transcription accuracy may vary with background noise or unclear speech
•Heavy reliance on AI rewriting may require manual edits for nuanced tone
•Webhook integrations may need technical setup for non-technical users
•Pricing details are not transparently listed, making cost evaluation difficult upfront

How to Use

Open the Letterly app and speak freely about whatever is on your mind—an idea, a task list, or a draft message. The AI will transcribe and automatically clean up your speech into readable text. From there, select a rewrite option to reformat the output into a structured note, social media post, formal email, meeting summary, or to-do list. Tag and organize your notes, then sync them across devices or send them to other apps via webhook integrations.