This is a free version of "Interactive Chemistry PRO", if you want the ad free version and more features search in the android store for "Interactive Chemistry PRO".
This app and chemistry calculator is ideal for students and graduates, you will find a variety of useful formulas for your daily calculus, you can enter a value by touch and solve any variable of the equation, the interactive feature of the formulas makes it easy to avoid typing or human errors.
In this app there are more than 50 formulas covering various topics like: chemical reactions, chemical interactions, thermochemistry, thermodynamics, electrochemistry etc. The interface is made in a way that you can see above any variable it's value.
Please feel free to send us your comments to improve the product or if you find a bug (include your phone model).