لغت نامه قاموس نور is an Android application developed by the Computer Research Center of Islamic Sciences. It falls under the Education & Reference category, specifically in the Books subcategory. This app offers Arabic to Persian and Persian to Persian dictionaries.

In the online mode, users can search for words in Arabic and Persian dictionaries available in the قاموس نور database. The intelligent search system suggests entries based on the entered word, providing a list of related terms. Users can input any Arabic word for meaning clarification without the need to match exact dictionary entries. Additionally, search settings in Arabic offer four sensitivity options for tailored results.

In the offline mode, selected Arabic and Persian dictionaries are downloadable, displaying entries alphabetically. Descriptions of each entry are shown upon search, with Arabic content sourced from "المنجد" and "فرهنگ ابجدی", and Persian content from "فرهنگ متوسط دهخدا".