AinCart

Big fans of Costco, you or your family, enjoy experience in Costco, with Aisle in Cart app, your shopping list can be handled easily, and get in and out quickly as possible where needs as extra benefit. Aisle number appears in the cart when you put your items there before trip which will save your in-store time.

Quick steps below:

Step 1, go to "Restore" tab, click on your local country button. ( This feature require IOS 15 version, so check if your phone software version is above iOS 15). You may still use this app just manually enter your the Aisle numbers, Category.

Step 2, go to "Aisle" tab, enter your shopping list in Cart by click Aisle number
Swipe Left/Right, brings out Aisles on Left / Right;
Swipe Up/Down, Back / Front Aisles will appear; Or
Double tap on screen, Middle section will appear;

Sept 3, Go to " Cart" tab, where shopping list should appear on screen, which you can tap it off once you pick it up in store. If need double - check, easily press button on top left corner or for re-pop up for next trip.

By the way: 
Aisle number, Category, Products are easy to amend to suit your local Costco floor map, as well as Aisle location (Left, Right, Front, Back and Middle).

Enjoy and welcome feedback!

( Note: Costco isn’t paying us for this app, just help ourselves as mentioned above)