Using Selenium Webdriver Selectors in Appium ios

A project I'm on is developing a web app at the same time as an ios app (for the same thing) and I'm hoping to be able to use existing Selenium tests, but we're having trouble with selectors. Is there a selector type or attribute name that can be used for both Selenium Webdriver and Appium ios, so that I can just set a variable to either browser or app and they run and work on both. Nobody on this project has used Appium before, so we are lacking a lot in knowledge.

I tried using IDs and found that ios doesn't work with them, changed to names and found that names have been removed from appium. If possible we'd prefer to use a selector that will be the same in the browser as it is in the app.

Thanks