Es.iphone.safari -

Users can change the menu and interface language of Safari without changing the entire iPhone system language. : Open the Settings app > Apps > Safari .

: Under the "Preferred Language" section, tap Language . es.iphone.safari

: You can select Spanish (Español) from the list of suggested languages or other supported regions. Users can change the menu and interface language

Setting the app language to Spanish does not automatically translate English websites. Instead, Safari uses "Preferred Languages" to prioritize which version of a website to display if multiple are available. es.iphone.safari