Does Bar code scanning work on iOS?

I’m trying to create an app that allows both android and iOS devices to scan the bar code on the back of books. so far following the documentation found under the BarCodeScanner documentation i have gotten it to work on android devices. My question is: does this library even support bar code scanning on iOS devices? in multiple places it says it supports it for iOS but there is one location that says iOS only supports QR scanning.

I pretty much just lifted the example code they provided in the documentation to begin messing around with it. that code works perfectly fine on android and I was wondering if there was something else I had to do to get it working on iOS. let me know if you need any more information. Thank you for your help.

Documentation: https://docs.expo.io/versions/latest/sdk/bar-code-scanner/