# Pay once. Keep all of it.

MarsDawn costs USD 4.99, one time. There is no subscription and no paid tier: every feature is in the one purchase.

![MarsDawn in the Vivid theme, with Markdown source on the left and the rendered page on the right.](https://marsdawn.southern-light.dev/assets/screens/04-vivid-1180.png)

In this screenshot:

1. Markdown highlighting in the editor, included.
2. Every theme and every layout is included.
3. Mermaid diagrams, included.
4. Code highlighting, included.

## What that means

- **One purchase** on the Mac App Store, USD 4.99.
- **There is no subscription,** so nothing renews.
- **There is no account:** MarsDawn never asks you to create one.
- **Nothing held back.** Every theme and layout, PDF export and printing, Quick Look, and the Siri and Shortcuts actions are part of the app you buy.

## More

- [MarsDawn](https://marsdawn.southern-light.dev/index.md): MarsDawn is a native Markdown editor for the Mac with live preview, Mermaid diagrams and PDF export.
- [Your writing stays on your Mac](https://marsdawn.southern-light.dev/yours/index.md): MarsDawn has no account, no sync and no cloud. Your documents stay on your Mac.
- [PDF export](https://marsdawn.southern-light.dev/pdf/index.md): Export as PDF or print, with Mermaid diagrams, highlighted code and careful page breaks.
- [A Mac app](https://marsdawn.southern-light.dev/native/index.md): Native windows and tabs, autosave, version history, Quick Look, and a text editor that behaves like the rest of your Mac.
- [What MarsDawn doesn't do](https://marsdawn.southern-light.dev/limits/index.md): No sync, no iPhone or iPad app, no plugins, no accounts. Four built-in themes. Know before you buy.
- [Support](https://marsdawn.southern-light.dev/support/index.md): Get help with MarsDawn, the Markdown editor for macOS.
- [Privacy Policy](https://marsdawn.southern-light.dev/privacy/index.md): MarsDawn does not collect personal data. Your documents and settings stay on your Mac.
- [Command Line](https://marsdawn.southern-light.dev/cli/index.md): The free marsdawn command-line tool: open Markdown files in MarsDawn, or export them to PDF from a shell or an LLM agent.
- [marsdawn for agents](https://marsdawn.southern-light.dev/cli/agents/index.md): A reference for AI agents and scripts that call marsdawn: commands, JSON output, schemas, exit codes and requirements.
- [繁體中文](https://marsdawn.southern-light.dev/zh-hant/pay-once/index.md): MarsDawn 售價 USD 4.99，買一次就好。沒有訂閱、不需要帳號，也沒有付費進階版。