How do their growth rates compare?

Lemon has a month-over-month growth rate of -12.3%; Letterly has -43.9%.

How does pricing compare?

Lemon: Freemium. Lemon offers a free starting tier with no credit card required, plus paid plans that raise usage limits. Exact plan prices and allowances are listed on the official website. Letterly: Freemium. Letterly is free to start with a freemium model. The free tier covers everyday dictation, while paid plans unlock higher usage limits and advanced features; pricing is shown in-app and on the website.

What are alternatives to Lemon and Letterly?

Other tools in related categories include Notta, Video Transcriber AI, Heyclicky, OpenWhispr, Superwhisper.

Lemon vs Letterly — Traffic (78.2K vs 53.01K), Pricing & Verdict

Open AI Tools

Lemon vs Letterly — Traffic (78.2K vs 53.01K), Pricing & Verdict | Open AI Tools

Side-by-Side Traffic & Specification Matrix

Dimension / Metric	Lemon	Letterly
Official Domain	heylemon.ai	letterly.app
Pricing Model	Freemium	Freemium
Monthly Visits	78.2K (78,198)	53.01K (53,009)
MoM Traffic Delta	-10.99K (-12.3%)	-41.48K (-43.9%)
Primary Market & Share	🇺🇸 United States (79.7%)	🇺🇸 United States (35%)
Direct Visits / mo	15.68K	40.98K
User Rating	4.3	4.3
Supported Platforms	Website	Website

Lemon

Stop typing prompts. Start talking.

Voice to structured prompt

Hold a hotkey, speak naturally, and get a well-structured prompt — with goal, context and constraints — typed directly into your active text field.

Fast dictation with filler cleanup

Dictate five times faster than you type while Lemon cleans up filler words and false starts, leaving only your intended words.

Writing in every app

Emails, Slack messages, team updates and notes are rewritten in your tone and matched to the surrounding thread.

OS-level, no plugins

Lemon sits in a notch at the top of your screen on macOS and Windows and works with Claude, ChatGPT, Cursor, Gmail, Slack, Notion, Outlook, Teams and more.

Strengths & Pros

+Works system-wide in every app with a text field — no integrations or plugins to configure
+Turns rambling spoken thoughts into structured, usable prompts
+Dictation mode is markedly faster than typing and automatically removes filler words
+Available on both macOS and Windows with a fast two-minute setup