The Walmart App is an all-in-one app dedicated to making your next trip to the megastore as painless as possible. The best feature is probably the shopping list, which allows you to select items you want to pick up on your next trip. The app will keep a running total of how much your trip will cost, so you should know exactly how much money you’ll need before you even leave the house. In the store, you’ll be able to add items using a barcode scanner, and find all the ongoing deals and discounts from the most recent ad. If you want, you can even do a little online shopping, and order items directly from the app. The Walmart App is available now from the iTunes App Store for free.