Interestingly, you can also change your default search engine in Google's own Chrome app. Just tap your profile image to pull ...

Google is the default search engine on Chrome; that means when you search for any query, your results will be shown in the Google search engine. Chrome allows you to manually change your search ...

Are you trying to use Google Search on your iPhone, but the screen is too dark? The fix may actually be as simple as just tweaking a few settings.