A histogram function will be nice. For undergrad student there is no use, but for physics students I think that will be useful.
As video analysis I don't think that is urgent but in the future it will be good to have.
It's not yet perfect. You should use the countdown function and leave your phone at rest during the measurement. If you pick it up, the histogram rescales to fit the whole data range, which will be pretty extreme. We plan to refine this and add a statistics section in a separate update.