Very useful app for students. The app lists all the Calculus Formulas. Derivative formulas - Exponential, Logarithmic, Trigonometric, Inverse Trigonometric, Hyperbolic, Inverse Hyperbolic, Different forms of Chain rule etc. Integration formulas - Trigonometric, Hyperbolic, Exponential & Logarithmic, Definite Integrals, Miscellaneous formulas.