A full version app for Android, by ChemEng Software Design.
This is a handy app for students, professionals, and anyone interested in science, engineering, maths, chemistry, physics, and other related subjects. It is a free, offline, reference tool for students and professionals in the field. It is also a great learning tool for anyone interested in learning more about the different topics in the field.
The application is divided into four main sections: Equations, Chemical Data, Units Calculations, and Add user units. Each screen contains a group of instructions, and for each instruction there is an explanation of what is happening in the screen.