The best translation extension

I have to read a lot in English and I have to say that this application is the one that gives me the most confidence. It translates a word by selecting it and clicking on the transparent logo, both on Mac, iPhone and iPad. It does the same with sentences and it does it 100%. I have experience with Google and it is light years ahead! Of course, it is paid, but I do it for this type of extensions because it saves me a lot of time and I want simplicity. I am a person and I give both good and bad marks!!! In this case a 10.