Math Unfolded

Math Unfolded teaches mathematics the way a good tutor does: it explains the idea, works an example through, and then asks you to do one — as many as you like, because the questions are generated rather than drawn from a fixed bank. Every answer is checked by the same engine that wrote the question, so a correct answer written a different way is still correct. When you get one partly right, the app tells you which part, and asks you again for just that part. It works entirely on your device. There is no account to make, nothing to sign in to, and learning never needs a connection — only buying the unlock goes through the App Store. Today it covers Algebra Foundations, Functions and Graphs, Trigonometry, Differential Calculus, Integral Calculus and Vectors. The introduction to every subject, and a third of Differential Calculus, are free. One purchase unlocks everything, and every…