Nifty - Manage projects, work, and communications in one place.

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.

Flow - Stop managing projects from your inbox.

markdown to web - Convert markdown to online web page

CheckFlow.io - Simple process and workflow management software using powerful checklists. Create recurring checklists, workflows and standard operating procedures.

Mochi - Write notes and flashcards with Markdown and study them with spaced repetition.