Safari is the default browser on iPhones, and you can clear your Safari cache in a few short steps. Starting with iOS 11, ...

Using Chrome with its default settings can ... which pages or websites open when you launch the browser. You can choose to ...

Select “Settings,” then “Default browser” from the left sidebar. Click “Make default” under the “Default browser” section. This will set Chrome as your default browser for all web ...

My patience with Chrome on iPhone reached its limit after dealing with partially loaded websites, missing elements ... but you'll want to choose All time. Now's time to delete the data to clear ...