Integral is an educational and reference app developed by Armanco for Android users. The app is designed to solve integrals offline and provides a list of integrals for users to choose from. It is available for free and falls under the Education & Reference category.

The app has an extensive list of integrals that includes rational, exponential, logarithmic, trigonometric, inverse trigonometric, hyperbolic, inverse hyperbolic, second derivatives, absolute-value, special, and definite integrals. With such a wide range of integrals, users can easily find the one they need to solve. Additionally, the app is designed to work offline, making it accessible anytime, anywhere.