Currently we have very different upload detail and add-category screens between Android and iOS versions of the Wikimedia Commons uploader app.

I've put descriptions and quick comparative videos on mediawiki.org: https://www.mediawiki.org/wiki/Apps/Commons/Categories

Impressions and ideas welcome!

(Y'all can try the Android version with categorization from Google Play -- the iOS version in the App Store doesn't yet have categories but you can try the older version to get a feel for the layout and the first data entry screen. For those on the beta group, there'll be a push via TestFlight later today.)

-- brion