Accessibility with apps and new phones

Hi all.

So, I'm wondering wonab apps and newer devices. Particularly Uber, and uber eats apps. I currently have an Iphone 7 running IOS 13 and these apps don't seem to work as they should with this phone. I'm thinking about getting a new phone, one ofthe newer moddles and I'm wondering, before I envest in getting a new one, will these apps be accessible with the new phones? Can I successfuly order something off uber eats without trying to deal with the issues? Am I able to select a payment method successfuly and order an uber to get where I need to go? I don't know if anyone else is having these issues with these particular apps, but would be interesting to find out. Thanks.