What is the difference? I did a Google search but am still confused. I am mostly confused by the fact that most sites mentioned that grape tomatoes are smaller than cherry tomatoes which can be fairly large in fact. In the grocery store, it seems I always see the larger oblong tomatoes which I assumed were grape and then smaller rounder tomatoes which I thought were cherry. Is it perhaps that both are grape tomatoes and cherry tomatoes are fairly rare find in the grocery store and not in the same area as the piles of grape tomatoes that always seemed to be lined up? I assume that the most people don't know the difference and use them interchangeably which could also be part of the confusion.