The Clue What Zomato is but tomato isn't
The Answer APP
Zomato is a food delivery service that operates through a mobile app. In contrast, a tomato is just a fruit and does not have any digital application associated with it. The clue highlights that Zomato is an "app," while a tomato is simply a food item. Thus, "APP" is the correct answer because it captures the essence of what Zomato is compared to a tomato.