Saving the environment never tasted so good: App sells leftover food

Users pay for their food leftovers through the app using a card, making pick-up a breeze: All they have to do is show up to the restaurant, where the food is waiting with their name on it, grab the meal and head off. Photo: Autumn Sonnichsen/dpa

Stores and restaurants lose money when they can't sell all their food. People like saving a buck or two when they grab a bite. Yet, these two seemingly complementary desires don't always align. 

According to estimates from the United Nations, about a third of all food products and meals made worldwide end up in the rubbish heap.