Stet Writer

Stet is a native writing app for people who publish with Jekyll or Hugo and GitHub.
If you maintain a Jekyll blog or site, you know the drill: open a text editor, wrangle YAML front matter by hand, commit to GitHub, and hope your formatting survived. Stet replaces that entire workflow with something that actually feels good to use.
Write in markdown with a styled editor that hides the syntax and shows you formatted text as you type. Bold, italic, headers, links, blockquotes, code — all accessible from a formatting toolbar or keyboard shortcuts. Flip to live preview to see exactly what your post will look like before it goes live.
Configure your site's front matter templates once, then fill in fields like layout, categories, and tags from a clean form instead of hand-editing YAML. Your drafts sync across all your devices with iCloud, so you can start a post on your iPhone during lunch and finish it on your iPad that evening.
When you're ready to publish, Stet connects to GitHub and pushes your post directly to your repository. No desktop git client required. No copying and pasting between apps.
What you get:

Styled markdown editor with formatting toolbar
Live rendered preview
Configurable front matter templates per site
iCloud sync across iPhone, iPad, and Mac
GitHub integration for one-tap publishing
Multiple site support

Stet is free to write with. Publishing to GitHub is unlocked with a one-time purchase.
The name comes from the Latin proofreader's mark meaning "let it stand" — a word written in the margin to keep text as the author intended. That's what Stet does. You write it. It stands.