CLEVELAND -- If you've ever wondered how many calories are in that sandwich you're about to eat, rest assured -- there's an App for that.

All you have to do is take a picture, and you'll know a rough estimate of how many calories you're about to take in.

The app is called Meal Snap, and was created by a fitness network called Daily Burn.

Meal Snap is a mobile version of one feature Daily Burn has available on their website -- nutrition tracking. But does it really work?

We put the app to the test at one of the most visited places during lunchtime -- the food court. To use the app, we snapped a picture of the food item and then typed in a small description.

Whether testing soup, sandwiches, or even a beverage, Meal Snap was fairly accurate in delivering an estimate of how many calories were in the meal.

But the big test came when we didn't use a description, forcing the app to rely on its own database.

We took a snapshot of a bag of peanuts. After a few minutes, since the app takes longer with no description, the results came back, "Bag of Peterson's Brand Salted Roasted Peanuts."

And the calorie range displayed, 164-246, was within the range of the calorie count on the bag. Pretty amazing.

The app also keeps track of all the different food items you've eaten throughout the day and keeps a running total of the calories.

Meal Snap is a simple way to keep track of what you're consuming, a task that many of us don't want to deal with.

So is that app worth $2.99? You be the judge. We were impressed.

The app is available in Apple's iTunes Store.

WKYC-TV