I tried adding coupon code on my ipad like any other code or gift card but it was not recognized. On vision pro, I am not seeing option to enter code. When I click buy the app it is directly asking me to confirm the purchase but no option to enter code.
Hm. I am sure there is a place where you can input any promotion code on the visionOS.
I am sure, because other users confirmed that it is working.
Maybe one person with a real device with US AppStore can help here?
I am currently not able to perform that at all due to a real device is not available to me. I am also sitting in Germany and here the AppStore is not available to us at all, even if I went to the next Development Lab in Munich for testing on a real device.