No need to pull up your calculators, guesstimate, or side-eye anyone for ordering the most expensive thing on the menu. Snap a photo of the receipt and Billy will precisely divvy it up based on everyone’s orders—tip and tax included.

What we love: After you take a photo of the receipt, Billy lets you allocate items to the name of the person who ordered them with a simple drag and drop. You can even assign a food item to multiple people to calculate for split portions.

Quick tip: Going on a group vacation? Billy subscribers can track and split trip costs too. Tap the three dots, select My Trips, and tap Create a Trip.

Meet the creator: Billy founder Reid Barber has wanted to make an iPhone app since he was 13. He’s most proud of Billy’s drag-and-drop feature, which he hopes makes the app “feel more like a game than a math problem.”