The Android app now has touch controls, so you can play without a controller.
Move with the stick on the left. The big button on the right attacks, talks or loots, and it picks the nearest monster for you. Your skills appear around it when you fight and hide again when you walk.
To put a skill on a button, open your skills window and the empty buttons appear. Tap a skill, then a button. Potions work the same way with your bag.
You can move every part of the screen, or turn parts off, in the HUD settings in the menu. Reset puts everything back.
Playing with a controller works as before: connect it and the touch buttons step aside.
Open the app to get the update.