Diary Girl. To be blunt, we find the art style off-putting, but then we aren't little girls. We would rather not stare into the faces of those Bratz-like characters as we confess our feelings to the touchscreen.
When you're not diarizing, you can keep up a to-do list, customize your horrifying avatar, check your horoscope, and play this little quiz game. If answering honestly, we'd have to pick option 2 here, which is why we're going to make a point to add "stop being a self-centered jerk" to our to-do list.