You'll find expert advice from a variety of sources that says anywhere from "1-2 hours daily MAX" to "none whatsoever."
I disagree with the experts, because what they really seem to be concerned with is how technology use displaces time to spend on other important developments, like social/emotional growth, communication, motor function, etc. This means a more nuanced view is required, because how much time is spent on the technology is not nearly as important as how that time is spent, and how it's affecting time allotted to other important growth areas.
If a parent or another child is actively engaged in the technology activity with that child, and it's not strictly a passive experience (they're both just silently watching), then the social/emotional and communication needs are still being met while technology is being utilized. If such a shared technology experience also involves educational material, I wouldn't look at it in the same light as reading together.
