How Do I Change My Default Map App on iPhone?

Unfortunately, there’s no way to select a default map app on the iPhone. Although you can change other default apps on the iPhone, such as your preferred web browser, Apple does not currently offer this feature for any iOS map apps, including Google Maps.

How Do I Make Google Maps My Default on iOS 14?

Unless you’re willing to jailbreak your iPhone, which isn’t recommended and against the terms of service for the iPhone, the only way to simulate making Google Maps your default map app on iOS 14 is by using other Google apps as your default apps (if you don’t already use them). Google’s apps are designed to work with each other, so they offer a lot of flexibility with using Google Maps as your preferred map app. The two most relevant apps to use would be Chrome as your default web browser and Gmail as your default email program.

How to Set Chrome As Your Default Web Browser to Use Google Maps

When you tap on a location’s address in Chrome, you’ll be able to view it in Google Maps.

How to Set Gmail As Your Default Email App to Use Google Maps

You need to be using Gmail as your default email app if you want to be able to open location addresses you receive by email in Google Maps.