Gold Density
The app calculates the fine weight of gold using the density method. It will give you the percentage, and the fine weight. You can also calculate how much you can get if you decide to sell or buy the gold.
You need a scale, a beaker, a string and the gold. The app will also take you through the steps of getting these final values.
It is so easy to use.
The app also has a converter function. the converter will enable you to convert grams to ounces and vice versa.
Gold Density app is available in both the Google Play store and Windows phone store.
Get it on Google Play