Simple NPK Calculator is an Android app developed by G-Task. It falls under the Utilities & Tools category and is available for free. The app is designed to calculate the composition of any chemical fertilizer.

The app is straightforward and easy to use. It requires the user to input the NPK values of the fertilizer, which are the amounts of nitrogen (N), phosphorus (P), and potassium (K) present in the fertilizer. The app then calculates the percentage of each element and provides the user with the overall composition of the fertilizer. The app also allows users to save the results for future reference.

Overall, Simple NPK Calculator is a useful tool for anyone in the agricultural industry who needs to calculate the composition of chemical fertilizers. It is efficient, user friendly, and free to use.