Added on 2025-03-28 02:00 PDT:
Thank you for playing "Fate/Grand Order".
The following is a message from the administrative team.

As of 2025-03-28 02:00 PDT, the supported iOS versions have been changed to iOS 13.0 or newer.
Please see this article for details of supported iOS versions.
* If your device's OS is not supported, you will no longer be able to play "Fate/Grand Order" after this change.

If you are unable to play after this change even on a device using a supported environment, please contact "Fate/Grand Order" Customer Support.

Customer Support:
support@fate-go.us

We apologize for the inconvenience to all affected customers.
Thank you for your cooperation and understanding.

Thank you for your continuing support of "Fate/Grand Order".

Thank you for playing "Fate/Grand Order".
The following is a message from the administrative team.

Due to the updated requirements for apps available in the App Store, going into effect in April 2025, as of mid-March 2025 we will be changing the supported iOS environments for "Fate/Grand Order" to iOS 13.0 or newer.
If your device's OS is not supported, you will no longer be able to play "Fate/Grand Order" after this change. In that case, we request that you update your device's OS.
* Please note that as supported OS varies by app, other apps installed on your device may not work after you update the OS. * Please check the supported iOS environments for other apps you use before updating the OS.

We apologize for the inconvenience to all affected customers.
Thank you for your cooperation and understanding.

Thank you for your continued support of "Fate/Grand Order".