GeoGebra Graphing Calculator 4+

If you make any kind of typing mistake or delete an object, there seems to be no way to get the object back. This can be very annoying if there are many objects that depend on the object you just deleted by accident.

This developer fails to understand the basics of user interface so as to make this app unusable. I was lookig for an upgrade of sorts to the default Grapher. The natural, universal menu bar is eschewed in favor of menus buried for no apparent reason under a three-line hamburger button. Options are further hidden behind "show more" and "show less" buttons. "Show More" acutally removs all the buttons from view. Your time is valuable, use it on anoher app than this one. As for the developers, I sincerely hope they can learn, and completely overhaul this terrible user-interface.

Spent way to much time trying to figgure out a simple plotting of a line with points (8,9)(-4,2) and I would do exactly what is would seem lkke a person needed to do an no matter what this thing vould not even do something as siple as that. Also the tutiral doesnt covers the simplest of things a person needs to know to use it. So either you already know how to use this somehow or you just cant use it because the tuttorial doesnt help and it is not intuituve at all. Total garbage.