GST Tax Calculator is a free Android application developed by S K Tulli in the category of Business and Productivity, specifically for Finance. It is a useful tool for small business owners who need to create invoices manually. The app provides an efficient way to calculate the difference amount of MRP, basic price, and CGST, SGST, or IGST in a very easy manner.

The interface of the app is user-friendly and straightforward. It allows users to input the MRP, basic price, and GST rate to calculate the CGST, SGST, and IGST amounts, along with the final price. The app also offers a reverse calculator feature, which is handy for calculating the MRP from the final price and GST rates.

Overall, GST Tax Calculator is a reliable and convenient tool for small business owners who need to calculate GST amounts quickly and efficiently. With its simple interface and accurate calculations, it can save users a lot of time and effort in their daily business operations.