There is only one version of Opera for iOS. It was called opera touch but now is just called Opera. An old and very quirky browser called Coast is still downloadable; I don’t know if it’s actually still listed in the app store or whether I can download it because I had it installed in the past.
My ipad is pretty old, can I can only run iOS 12 and opera doesn’t run very well in its recent version. I don’t know how it performs on newer iOS. Opera is my main browser on Windows Mac and Android, ( there are three versions for Android), but I haven’t been impressed with it on iOS, which is a real pity.