Im tutoring someone in Grade 11 math.. One problem Im finding is that the calculators are WAY too complicated these days. And Im thinking most students cannot use anything more than the basic math stuff, because theyve lost the manual and there is absolutely no way to figure it out. This calculator would do so much of what a high school math student would do.. Now you cant do complex math and linear algebra.. you might need another calculator for that.. but this does virtually all the basics. I especially like the statistics section. Very easy.. Create a list with D+/D- and then use a function on it. So while some might think this is not powerful enough.. no 2-var stats, complex math, or linear algebra, for instance.. At least students will use the functions on it. I really like this app. Ive bought 3 other apps.. and for some stuff, this is better.