Changing the default browser on iOS
If you want to set another web browser as the default on your iPhone or iPad, instead of Safari, Google Chrome becomes one of the easiest options.
To do so, you just have to open the Chrome application, click on More and then about Setting. Now you will have to touch on Change default browser, and finally click on Default browser app.
Right here you will have to choose the option of Chrome. Since then, each and every link you click will automatically open in the browser developed by Google.