DailyState is a motivational journaling app in which you define goals, and then write about your progress and state of mind. The build-in coach makes sure you stay on track by notifying you about your progress.
For example, you can define a goal to finally launch that side-project you always wanted to do, and that you will work on it 3 times a week. The coach will then check whether you've written about it at least 3 times a week and notify you of that progress. It's feels like somebody watching and helping you to get things done.
Another cool thing is that you can track stats about yourself, such as headaches, happiness or when you've met with friends. Any search is turned into stats providing great insights about yourself.