We've received several comments on the option menu and exit button, so far.Yes, you are right; they are missing.In this release, it was actually our design challenge not to use any menus or buttons.We've tried to naturally integrate everything into the touch gestures.The menus / buttons ask for an attention, interpretation, and decision.This means a distraction while all you want is to enjoy going through your photos.So we decided to experiment what happens if we get rid of them from the screen.We thought it will offer the better "fun" and "pleasure" out of viewing photos.How did you find our design approach working?We're interested to learn your feeling!