Checkout these great mathematics and science apps from Wolfram

Here are some great Apps developed by Wolfram makers of Mathematica

Calculus Course Assistant
Taking calculus? Then you need the Wolfram Calculus Course Assistant. This definitive app for calculus–from the world leader in math software–will help you work through your homework problems, ace your tests, and learn calculus concepts. Forget canned examples! The Wolfram Calculus Course Assistant solves your specific Calculus problems on the fly including step-by-step guidance for derivatives, integrals, and much more.

Wolfram Alpha
Remember the Star Trek computer? It’s finally happening–with Wolfram|Alpha. Building on 25 years of development led by Stephen Wolfram, Wolfram|Alpha has rapidly become the world’s definitive source for instant expert knowledge and computation.
Across thousands of domains–with more continually added–Wolfram|Alpha uses its vast collection of algorithms and data to compute answers and generate reports for you.

Multivariable Calculus App
Taking multivariable calculus? Then you need the Wolfram Multivariable Calculus Course Assistant. This definitive app for multivariable calculus—from the world leader in math software—will help you work through your homework problems, ace your tests, and learn calculus concepts. Forget canned examples! The Wolfram Multivariable Calculus Course Assistant solves your specific multivariable problems on the fly, providing step-by-step guidance for limits, derivatives, integrals, and much more.

Precalculus Course Assistant
Taking precalculus? Then you need the Wolfram Precalculus Course Assistant. This definitive app for precalculus—from the world leader in math software—will help you work through your homework problems, ace your tests, and learn calculus concepts. Forget canned examples! The Wolfram Precalculus Course Assistant solves your specific precalculus problems on the fly, including solving equations, vector arithmetic, statistics, and much more.
This app covers many topics applicable to precalculus and trigonometry.