I created an app for just my group of friends to pick where to go to eat.
It had tags for different places and would narrow the selection down and ultimately pick one. You could say where people in the group had been recently and they would be removed, say which area of the city you wanted, delivery, take-out, dine-in, fast food, and other properties. People also had profiles where they could choose restaurants they didn't like and when you went through the picking wizard, you would indicate who was going and it would discard any restaurants that those people disliked from the potential pool. A random number generator would then make the final decision from the possible options.
It had tags for different places and would narrow the selection down and ultimately pick one. You could say where people in the group had been recently and they would be removed, say which area of the city you wanted, delivery, take-out, dine-in, fast food, and other properties. People also had profiles where they could choose restaurants they didn't like and when you went through the picking wizard, you would indicate who was going and it would discard any restaurants that those people disliked from the potential pool. A random number generator would then make the final decision from the possible options.