NotePlan - Make plans inside an individual markdown note for every day in your calendar. Use it as a journal for your daily tasks and plan todos in advance. For Mac, iPhone and iPad.
ProductBio - Automatic sustainability compliance
markdown to web - Convert markdown to online web page
dripdrip - Become aware of your water usage
Mochi - Write notes and flashcards with Markdown and study them with spaced repetition.
Cove - The First Smart Water Filter For Homes