[Updated: Apple issues statement on the matter] Photo gallery service 500px
has had both of its photo-sharing apps -- 500px
-- removed from the App Store by Apple, the developer says
. The titles are said to have vanished around 1AM Eastern time today. 500px's COO, Evgeny Tchebotarev, has explained that Apple took the move following talks about an updated version of its namesake app, which was being looked at by an App Store reviewer.