Russian - Word of the Day is an educational and reference app available on the iPhone platform. Developed by Tran Hoa, this free app aims to expand users' vocabulary by providing them with a daily word, along with its definition and usage examples. The app sources its words from trusted references such as the Oxford Advanced Learner’s Dictionary, Cambridge Dictionary, SAT, GRE, GMAT, IELTS, TOEFL, and CAT exams.

The app offers a wide range of academic, obscure, and challenging vocabulary that is suitable for native speakers. It also provides synonyms to aid in better understanding and memorization. Additionally, for those interested in the origins of words, Russian - Word of the Day offers etymology information.

Users can customize their learning experience by choosing the time of notifications for daily word updates. The app also includes a pronunciation feature to help users with proper word pronunciation. Furthermore, users can share the daily word with their friends and family.

Overall, Russian - Word of the Day is a useful tool for anyone looking to expand their Russian vocabulary and enhance their language skills. With its daily word feature, reliable sources, and additional learning resources, this app is a valuable educational resource.