A free program for Android, by Mario Chavarría.

Formulia is a mathematics and science application designed with the purpose of helping students to study. The main focus is to offer you a variety of formulas for different topics, as well as calculators and tools that will be useful when performing certain calculations.

MATHS

This application is intended to help you to learn formulas from different branches of mathematics, such as algebra, trigonometry, chemistry and physics.

PHYSICS

The app also offers formulas from different topics in physics, such as: wave mechanics, optics, mechanics, electricity, mechanics, optics, and many more.

CHEMISTRY

The app also offers a number of formulas from chemistry.