Is it ok to leave iPhone on 24/7?

Is it ok to leave iPhone on 24/7?

No. It dies

The worst thing that can happen is that your iphone's battery will die and eventually need replacement. So it is ok, if yo don't mind the latter.

The other posters have no idea what they are talking about. I never turn my iphone off, my last one I didn't turn off in over 2 years, and my 5S I have now I haven't turned off once since the day I bought it. I've never had a battery issue, at night just flip that mute switch in the corner to make it silent.