You can easily change Gmail display by accessing Gmail's quick settings menu that pops up beside your inbox when you click ...

To change the default email app on an iPhone, you'll need to upgrade to iOS 14 and make sure you have a compatible app ...

You can add multiple Google accounts on your Android device. However, it considers the first account you sign in with as the default and uses it to sign you in across various Google apps and services.

When browsing the web with Google Chrome, Google marks one account as your default in your web browser. This works similarly ...

Your iPhone comes pre-installed with several Apple-built apps. These include Calendar, FaceTime, Reminders, Safari, Notes, Maps, Health, Apple Music, and Mail, to ...