bilingual dictionaries / двомовні словники
Chinese Words Study (HSK 1–5) on Desktop and Phone
An app for Android to practice with vocabularies in the KVTML format.
Alphabet Flashcards for Kids
A basic offline dictionary for Android
English Grammar for Russian-Speakers
kDicts is a simple app for anyone who loves to study foreign languages
Language Informant is a language education platform.
A polylingual dictionary/ontology system
My Freeware
Ultimate dictionary that not only holds words but teaches them as well