If you’ve ever hosted a party and had to figure out how many pizzas to order, you might think that coming up with the answer is an inexact science.

Leave it to an app developer to turn it into an exact science.

The Pizza Counter app calculates exactly how many pizzas you’ll need for any family function or party.

It even connects you to Yelp to show the nearest pizza places in your area and how large of a pizza you can order from each.

photo credit: shutterstock