Any news on that?
We are also using the pro version in a hybrid app (Ionic framework). The gyroscope is not available in the current iOS version. I found this related WebKit bug: https://bugs.webkit.org/show_bug.cgi?id=203287 and other solutions show the same problem, e.g.: https://github.com/processing/p5.js/issues/4037.
Does anyone have further informations about this issue?