: The phrase "draft piece" combined with "user-hidden" strongly suggests this is pre-release software not intended for the general public.
: Short for "Universal," meaning the app is designed to run on both iPhone and iPad. : The phrase "draft piece" combined with "user-hidden"
: Suggests this is a "shadow" or hidden build, often used for A/B testing or internal "dogfooding" where features are hidden from the general public. : The phrase "draft piece" combined with "user-hidden"