Readdle

Gmail, Outlook, Spark or Hey can now be set as your default email client on iPhone and iPad

iOS 14 and iPadOS 14 added the ability to set your default email client and browser apps. It permits your favorite third-party email or browser app to launch instead of Apple's stock Mail and Safari apps anytime you click an email or web link. This requires not only support from developers who have opted to implement the feature, but also approval from Apple. Several email clients have added support for this capability, including Gmail, Outlook, Spark and Hey.