Are you really sure that the iOS app itself is licensed under CC? Asking as you uploaded https://commons.wikimedia.org/wiki/File:Screenshot_of_Wikipedia_IOS_app.jpg. See https://commons.wikimedia.org/wiki/Commons:Screenshots
Topic on API talk:Geosearch
Thanks :) I've changed the license details: https://commons.wikimedia.org/wiki/File:Screenshot_of_Wikipedia_IOS_app.jpg