Scanning books and recommended iPhone stand

iOS & iPadOS

I am looking for an inexpensive stand for my iPhone 6 to use with the KNFB Reader app to scan in books.

I assume that the automatic mode in the KNFB Reader can be used to scan two pages of an open book at a time as I turn the pages but am not sure exactly how this works since I've never tried it.

Any recommendations and/or suggestions are appreciated.