Originally, the mobile Photoshop from Adobe was only usable on tablet devices which met its screen resolution criteria, this is no longer the case starting yesterday.
This just released version is literally different from the tablet one which is very apparent from the UI that is now oriented to portrait operation.
Some people have qualms about the dissimilarity between the two apps because you need to actually pay for both to get essentially the same functionality on the phone and tablet.
Nontheless it is very promising to witness high caliber productivity apps migrating into the now very powerful mobile phone systems. Simultaneous Android and iOS versions have been released so head on up to the store of choice to grab hold of this multimedia processor powerhouse.