I have been using this app for several years to track Santa and used to love it. The latest version has completely failed and is useless on iPhone X. I thought I would just go to the NORAD Santa website on my new MacBook Pro but that failed too. The developers of NORAD Santa have completely failed and should be ashamed. I have found another Santa Tracket that actually works on the iPhone and used it to track Santa last night. I wish I could give this app ZERO stars as it is a complete failure, but unfortunately I can’t.