Quick tips about Austria
Official Currency: Euro (€). Credit cards are accepted everywhere, but it is always a good idea to carry some cash for smaller purchases.
Electricity: The standard voltage is 230V. The power socket is type F. Check here to determine if you need to bring a travel adapter.
Data and Wifi: Most places will have wifi. But if you need a SIM card, get one either at the airport, Hartlauer or T-Mobile stores in the city.