eflasoft's Azerbaijani - Russian is an educational application that aims to teach users Russian and Azerbaijani words with games, tests, and a quick offline dictionary. With hundreds of thousands of words and sentences in the database, the app offers alternative translations, writing, listening, and speaking tests, and games to help users learn vocabulary quickly. The app's offline dictionary suggests translations as soon as users start typing and sorts the meanings of words based on frequency of usage, with percentage information included. Users can also see and listen to usage of words in sentences with examples, and learn words more easily with example sentences. The app also offers a translator, flashcards, multiple-choice tests, and other educational games, including a fun game where users compete against time and gravity to accurately mark the meaning of falling words. Overall, eflasoft's Azerbaijani - Russian app is a comprehensive and engaging tool for anyone looking to learn Russian and Azerbaijani vocabulary.