Decisionize - Simplify decision making in 3 easy steps

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.

Flotsm - Anonymously seek opinions on everyday decisions

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

Decision Jam - Make better decisions quickly with your team

Inkdrop - The note-taking app with robust Markdown editor, supporting macOS, Windows, and Linux.