After I updated my iPhone 13 to the iOS 27.2 beta, prices started displaying correctly even in the TestFlight build. I’m still a little concerned about whether they’ll display correctly in production, but I wanted to share this update.

I'm seeing the same issue on an iPhone 13 running iOS 26.6.1. My App Store region is set to Japan, but prices are displayed in USD instead of JPY. The issue does not occur when I run the app directly from Xcode. However, when I installed the app via TestFlight on an iPhone SE running iOS 17.5.1, I couldn't reproduce the issue. Prices were correctly displayed in JPY, as expected. I hope this information is helpful. If any additional information are needed from the iPhone SE, please let me know. For now, I plan to keep the iPhone SE on its current iOS version. However, if needed, I may update it to iOS 26.x or 27.x for further testing. I suspect this issue may be related to the combination of iOS and TestFlight, so I think the same USD display issue might occur after updating iOS.