Unable to Sign In to Nintendo Account on Nintendo Applications for iOS Devices (iPhone, iPad, etc.)
The information in this article can help when you are unable to sign in to a Nintendo Account using an iOS device, such as an iPhone, iPad, or iPod.
Important: We have removed the ability to create or sign in to a Nintendo Account via Google or Apple accounts from an iOS Nintendo app in compliance with iOS App Store review guidelines. It is only possible to sign in using your Nintendo Account e-mail address and password on an iOS Nintendo app.
In order to sign in to your Nintendo Account on a Nintendo mobile app (like Mario Kart Tour) when using an iOS device, you must use your Nintendo Account e-mail address and password. You may have set up these credentials when you initially created your Nintendo Account, but if you have previously only used an alternate sign-in method (Google or Apple Account account), you can set your e-mail address and password through the Nintendo Account website on any internet browser.