About this app
GST Calc calculates the Goods and Service Tax (GST) for any item. It will calculate the GST in two directions. 1. Enter the GST excluded price to calculate the GST and add it to the base price. 2. Enter the GST included price and it will subtract the GST from the value and give you the base price. There is a 3rd field that allows you to change the GST rate. It will default to Australia's 10% however it can be changed to match the GST/Sales Tax/VAT of other locations.
Latest release
What’s New
We have noticed there has been a dramatic increase in sales from Countries other than Australia. To help with local sales tax and VAT we have enabled the changing of the GST/VAT/Sales tax amount. All the other features in the app remain the same.
Audience growth
Ratings growth
Baseline captured. Growth appears after the crawler observes a changed rating count.
Momentum comes from crawler snapshots for the tracked storefront. “Viral growth signal” means unusually fast recent rating gains; it is an indicator, not download data.
Price tracking
Price intelligence
First snapshot captured. The trend line starts after the next crawler price observation.
- First observed Aug 17, 2026 · 10:16 PM $0.99