Fantastic app. One little request My only wish is engine time limit in lightbulb mode to save battery. To me 2-3 seconds is usually enough  anything more is a waste of power. I constantly have to switch analysis on/off which is annoying esp. that it also removes the arrows and the engine output. An analysis time limit setting and a button at the bottom telling the engine to continue (if the user wants more depth in some positions) would solve this. Every Android chess app should have this feature as they run on phones with limited battery.
May 10 2016