As one of the semester projects for my Master's Program, I created a nifty little Android app based on Augmented Reality which was intended for pedestrian navigation. This was just a basic setup and the app is still a little buggy, but it was meant only as a test and only for learning purposes.
To fully develop it would take too much of my time unfortunately. This one is classified as closed for now, but might be continued at a later date.
You can test the app for yourself on the Google Play Store.