Dict4all EN-RU (Большой англо-русский словарь)
iOS Universal Education
This english-russian and russian-english dictionary contains of 527 000 english and 372 000 russian words, phrases and vocabulary items. That’s why it’s the biggest dictionary on the App store!
It’s the best dictionary for students, teachers, travelers and for all people who want to learn English and Russian and it doesn’t require internet connectivity.