iDiagrams 1.0 for Mac was available to download from the developer's website when we last checked. We cannot confirm if there is a free download of this app available. The application lies within Design & Photo Tools, more precisely Viewers & Editors.
According to the results of the Google Safe Browsing check, the developer's site is safe. Despite this, we recommend checking the downloaded files with any free antivirus software. The most popular version among iDiagrams for Mac users is 1.0. This free Mac app is a product of ing.conti/ simone pallotta. The unique ID for this program's bundle is com.ingconti.iDiagrams.
From the developer:
iDiagrams is a free application that allows you to sketch your E/R diagrams. Also, with this app you can create flow diagrams. After you finish to sketch your diagram, you can save the project in the .idg format. This application has an easy to use and intuitive interface.
You may want to check out more Mac applications, such as Morph Age, Kid Pix Deluxe 3X or MozoDojo, which might be similar to iDiagrams.