...It is suitable for real estate in all states or territories including: ACT, NSW, NT, QLD, SA, TAS, VIC and WA. The application also calculates any grants that might be eligible such as the first home buyers grant (FHOG), First Home Builders Boost (TAS) and New Home grant (NSW).
The application is licensed under the GPL and the source code is available on github here: https://github.com/alexkb/sdc
An internet connection and the phones geolocation features are required to automatically detect which state the user is located in, but this isn't required for the calculator to work.