Ah! That makes more sense, I thought we were talking about the web. That said, since I wrote that comment, I found out that on Android, both Firefox and Chrome

Ah! That makes more sense, I thought we were talking about the web. That said, since I wrote that comment, I found out that on Android, both Firefox and Chrome grant access to gyroscope data without a permission dialog, which is extremely surprising. I don't have an iOS device to verify, but apparently Safari gates the API behind a permission dialog.