Users will be able to connect instantly to a nationwide network of wifi hotspots - in railway stations, hotels and public institutions, for example - via the app, without filling in any further details after the initial authentication process.
The aim of the project, launched by Italy's Ministries for Economic Development and for Culture, is to simplify life for locals and tourists alike.
The app has both Italian and English language options, and to start with it has been launched in tourist hotspots including Rome, Bari, Milan, Trento, Tuscany, and Emilia Romagna.
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Culture Minister Dario Franceschini said the Wifi Italia app was an "indispensable tool for tourism", suggesting that visitors could use it to book tickets for museums online as well as to research alternative sites nearby to avoid overcrowding in city centres.
The ministry will also use the data collected by the app to "improve Italy's cultural offerings", he said, through anonymous data analysis and studies of user behaviour.
The Wifi Italia app is currently available on Google Play and the App Store, where it has been downloaded tens of thousands of times so far. It has received mixed reviews, with the majority of complaints relating to the fact it does not yet offer wifi access across the entire country.
Meanwhile, the Repubblica daily labelled the app a 'flop' after its reporters found they were unable to connect to several supposed wifi hotspots in Rome and Milan.
The ministries have said the app will be updated over the coming months to offer more comprehensive coverage. The app is part of a 'digitalization protocol' for the country's tourist sector, drawn up in July 2016 with the objective of improving digital services for visitors to Italy.