Google is testing out adding third-party accounts to Gmail on iOS

Google is testing out the ability to add third-party email services to the Gmail app on iOS. If enabled, it would put the app directly in competition with Apple’s own default Mail app, along with other third-party email apps like Spark and Edison Mail.Google has offered the option to add third-party accounts on Android phones for a while, which made sense, given that Gmail is the default (and sometimes, only) email app preinstalled on many Android devices. But offering the ability to suppo