Typora - A minimal Markdown reading & writing app.
iDoneThis - iDoneThis The fun, easy way to get stuff done. Every day we’ll email your team to ask, “What’d you get done today?” Just reply to our email. The next day, everyone gets an email with the team's accomplishments
Dillinger - joemccann has 95 repositories available. Follow their code on GitHub.
Writing Streak - Write every day, skyrocket your productivity
StackEdit - Full-featured, open-source Markdown editor based on PageDown, the Markdown library used by Stack Overflow and the other Stack Exchange sites.
Morning Pages for iPhone - Morning Pages for iPhone is an app that helps you reveal your artistic mind and expand your mental and emotional wellbeing.