It would be great if we could create a shopping list on the app.
Though that would be a nice feature, it kind of already does this in a sense. Any offers you select are compiled on a list under each store. As of now, there isn't a feature that includes a list of offers preselected for multiple stores. It may be a helpful feature but I can also see how confusing it might be. Still, it is an interesting concept. Usually, when in a store, I go to the Ibotta app and look at the items on the list I want to redeem for the store I am in. For example, I am at Walmart, I click on Walmart store in Ibotta. I then hit the list button. All the offers I selected to redeem will show up there. Easy to use and convenient.
There's a function that serves as a list within the Ibotta app.
When you open the gallery for the desired retailer. You will find a hyperlink for your list in the lower right hand corner.
Press the list function and your list will open.