[Venetiax9]

When checking history on my LG Stylo sometimes system.android.incallui is present and some days it isn't... What makes this show up.. I make calls daily so is it a certain app

[B. Diddy]

Welcome to Android Central! InCallUI is the user interface while you're in a call. It may be that it only becomes active if you so other things on the phone while on a call. So when you're just talking on the phone without doing anything else on the screen, it might stay dormant.