[listic]

    The app was more of scratching personal itch

And what was that? I mean, really, what does daybook do that, say, a Tumblr or your favourite blogging platform doesn't?

By the way, the green button says "Publish post", reaffirming my intuition... that it's just a blog, all along?

    the intimacy of a book

Exactly what features of a book is daybook sharing? Will it be my own, and only my private own, unless I will explicitly share it, and only then, with one or two persons at a time? Will it will always be there for me to add notes to, even when my cell phone runs out of its data plan or out of coverage in the subway? Something else?