I don't make very much money, and the phones I buy are usually between $100-200. The only way to do that with iphone is to get a phone that's both old and used. There's no new options in that price range at all.
However, even if there was, or if I just bought used, it doesn't offer me any benefit to swap. My experience with ios was never very good back when I did use it, it restricts how you can use your phone really heavily. I love being able to install apps from F-droid or my web browser, and changing launchers gives you a lot of customization of your home screen. I also really value that once your android device isn't supported with software updates anymore, the community can still develop up to date android versions for those devices so you can use newer versions of android than the manufacturers intended