Download of Icona 1.3 for Mac was available 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. The latest version of Icona can be installed on Mac OS X 10.6.8 or later. The most popular versions among the program users are 1.3 and 1.2. This Mac app is an intellectual property of D'Urso & Fidotta MacApp. The bundle identifier for Icona for Mac is com.dfmacapp.Icona. Icona for Mac lies within Theming Tools, more precisely Icons & cursors.
From the developer:
Icona is a simple App that allows you to create icons from image. You can decide to save the icon or apply it to a folder.
Is very easy to use. Drag an image into the Icona window and then drag the folder you want to change. Creating icons has never been so easy.
not guarantee full compatibility with retina displays
You may want to check out more software for Mac, such as Icon Creator - ICNS and IconSet Composer, iOS Icons or Icon Maker, which might be related to Icona.