Dict EN-RU is an English-Russian and Russian-English dictionary application available on the iPhone platform. It offers offline functionality, eliminating the need for an internet connection. The app includes various features such as searching for words from the clipboard through widgets, 3D Touch menu, and an option to check the clipboard upon program launch. Additionally, it supports searching with consideration for word forms and provides hints for misspelled words.

Users can also search for words within articles using the contextual menu command "Lookup" and access random articles by shaking the device. The app includes a Favorites section, a query history sorted by frequency and time, and the ability to adjust font size. It supports both vertical and horizontal screen orientations. Gestures like swiping left or right with one finger for navigating between articles and pinching to adjust font size are also supported.