Usage depleted overnight. All updates set during free time.

recall apple updates are not "controlled" (at least from what I can tell), they just happen.  If there is a way to control when the apps/ ios is updated, would be nice to know about.  Good luck. Also: if you have Amazon pads, they are even worse about uncontrolled downloads and worse, if you watch a video on them from prime, it sets the HIGHEST download possible, and cannot be controlled like in Netflix.