TTDic Russian-Ukrainian and Ukrainian-Russian is an offline dictionary that provides users with a functional and user-friendly interface. With over 390,000 words, it is a highly efficient and fast application, equipped with the ability for high-speed searching and filters such as search suffix and prefix. The app also features voice recognition with a Text-to-speech engine.

Users can add words to a list of favorites, create bookmarks, and save scanned words in history. Additionally, the app allows users to share words in other applications and sound out words or selected text. The interface also includes an option to change the text size and color, as well as to clear bookmark lists, favorites, and history.

The description window opens when a user clicks on a word, and can be expanded or collapsed with a swipe function. The window also includes options for search, audio, and sharing of selected words. Overall, TTDic Russian-Ukrainian and Ukrainian-Russian is a reliable and efficient offline dictionary for those looking to improve their language skills.