Although the system runs on the Wolfram Cloud and online Mathematica instead of local computer hardware, the software is quite beneficial. From my usage of the cloud and local Mathematica, I can attest that the “mobile” version of Mathematica can handle Algebra I, Algebra II, Pre-Calculus, Calculus I, Calculus II, and Differential Equations. However, although the online version of Mathematica can do partial differentiation and multiple integrals, as required in Calculus III, the online version lacks in the graphing of planes in 3 dimensions - specifically rotating them. Nonetheless, I have not seen an app that one can pull out their phone and easily solve a differential equation: DSolve[y’’[x] + y[x] == 0, y[x], x]. The function of this software is truly up to the user - where it might be helpful to some and not functional for others. However for the high school student or undergraduate in college, this is quite an investment in your education.