"آوای قانون" is an educational program developed by Chatre Danesh for iPhone users. It aims to enhance the mental abilities of candidates preparing for legal exams to better understand the laws. The program offers two formats: a software version that allows simultaneous listening and viewing of installable materials on smartphones, with the ability to select topics for effective learning, and an audio file format that can be played on all audio playback systems such as cars and computers.

Key features of "آوای قانون" include the ability to simultaneously see and hear the laws, a categorized index of the law (chapter, section, topic), the option to add notes, tips, or explanations for each article, the ability to bookmark frequently used materials for easy and quick access, customizable font selection, font size, and text layout, adjustable line spacing, the ability to jump from one article to another, and the option to return to the last read article.