Dehkhoda 2.0 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.
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 actual developer of this software for Mac is MicroSyncing. The software is included in Education Tools.
From the developer:
Dehkhoda is the largest comprehensive Persian dictionary ever published, comprising 16 volumes (more than 27000 pages). The complete work is an ongoing effort that entails over forty-five years of efforts by Ali-Akbar Dehkhoda and a cadre of other experts. This application covers a big part of literary terms and words in Persian language.
You may want to check out more Mac applications, such as eSpeak, Translate Text or collatinus, which might be related to Dehkhoda.