Does not recommend this product
Let me start by saying that I write private posts on my Facebook all the time, Except when I don't post at all. So when I saw this I thought to myself, hey, this maybe that next social network!
To my disappointment this just seems to be another note taking app. Lose my phone and all my "private" thoughts with Will it, at least, backup to my private cloud?
Perhaps the silver lining is that I'd download the app if it had a "central database" and publish option (extendable to Twitter and other social networks I want to integrate). An in-app Facebook-like newsfeed is not a bad idea either, for those exceptional moments the introvert feels extroverted (Hey that sounds like a social network... for introverts).
Other than that I love the minimal UI and I seriously think this has potential. Keep going!