501 зарбулмасал is an Android application developed by EvrikaGroup and is available for free on the Google Play Store. The app consists of a collection of 501 proverbs in the Tajik language, divided into 35 different categories. The proverbs cover a wide range of topics, including love, family, work, and wisdom.

The app's interface is simple and easy to navigate, with each proverb presented in both Tajik and English translations. Users can search for specific proverbs by keyword or browse through the different categories. Additionally, the app allows users to bookmark their favorite proverbs for future reference. Overall, 501 зарбулмасал is a comprehensive collection of proverbs that is useful for anyone looking to expand their knowledge of the Tajik language and culture.