Is there any app for iOS to translate any screen in any app, or any arbitrary screen of the iOS general.
On Android it exists, I have used it before. I don't remember whether I found the feature on Google Translate or on Pleco, on Android that is. If you are unaware of what I am referring to, one could google for something as what goes by the name "Google Tap to Translate".
On apple iOS, it does not exist? Free would be preferred.