It helps users examine words and their grammatical roles, presenting the analysis in Italian. According to the site, the app is currently about 96% reliable, and its creator continues to work on improving its accuracy.

To use italica, users enter Italian text and request an analysis. Colored words can be selected to hear an Italian-language reading of the grammatical analysis for each word. Users can also adjust which grammatical details appear, report possible errors, and remove individual items from the results. The app includes a history feature for revisiting previous analyses, as well as a command to clear that history.

The interface provides information and support options, display settings, and links to download the app. It is available in multiple interface languages, including Italian, English, French, German, Spanish, Russian, and Chinese. italica is intended for people who want a practical tool for exploring the grammar of Italian text.