Italian 23 1.1 for Mac could be downloaded from the developer's website when we last checked. We cannot confirm if there is a free download of this app available.
Please check the Mac app with an antivirus before launch as it is downloaded from the developer's website, and we cannot ensure that it is safe. Italian 23 for Mac is included in Education Tools. This free Mac application was originally designed by Strelka Limited.
From the developer:
Italian 23 is a simple and convenient multilingual dictionary of the Italian language. The dictionary includes Chinese (ZH), Dutch (NL), Danish (DA), English (EN), French (FR), Finnish (FI), Greek (EL), German (DE), Indonesian (ID), Italian (IT), Japanese (JA), Korean (KO), Malay (MS), Norwegian Bokmal (NB), Portuguese (PT), Russian (RU), Swedish (SV), Spanish (ES), Thai (TH), Turkish (TR), and Vietnamese (VI).
You may want to check out more Mac applications, such as Chinese 23, Learn Italian - Complete Audio Course Beginner to Advanced or WordPower Learn Italian Vocabulary by InnovativeLanguage.com, which might be related to Italian 23.