Has this ever happened to you? You return from a vacation and don’t remember what you did on what day.
An app that alerts you whenever you arrive at a place to take a photo and caption it, and when you leave alerts you to write a short note (text or audio) about the place you just visited. At the end of the trip, you have a textual and visual timeline that you can export as a video, an HTML page, etc.
We all like to remember happy moments and loved one who are not with us anymore.
An app that you can “feed” with photos of people and happy moments of the past. Then when you point the app’s live cam at the spot where that memory took place (like the sofa), it will augment the live view with the people from that memory in the photo. You can pan left and right, and it will be almost as if you are looking at the live event from the past.