Google will now let users set Gmail as the default mail App on their iPhones and iPad. Before that, Google had rolled out a bunch of updates to support the latest version of Apple’s mobile operating system.
Version 6.0.200825 of Gmail for iOS is now available on the App Store. You will see an in-app prompt to set the App as the default iOS mail client. Otherwise, you can manually visit Settings>Gmail. In case you delete your iOS Mail App, Gmail (or any other third-party app installed) will be automatically set as the default mail App. Read More