How Do I Use DuckDuckGo As The Default Search Engine In iOS? Yes, you can switch to DuckDuckGo as of iOS 8. Open the Settings app and navigate to Safari > Search Engine. Select DuckDuckGo and exit the Settings... Read answer Asked by Allison W. on September 29th, 2014 Filed Under: iPhone, iPad, Safari, iOS, Settings, DuckDuckGo, Search Engine