If you're looking for a reliable translation app, Русско-английский переводчик is a great option. Developed by .TJ, this app is available for Android users and is completely free.

One of the best things about this app is its extensive vocabulary. With over 400,000 words and phrases in the Russian to English translation section and over 500,000 in the English to Russian section, you can be sure that you'll find the word or phrase you need. The app is easy to navigate, and you can search for words or phrases by typing them in or using voice recognition.

Overall, Русско-английский переводчик is a great choice for anyone who needs a comprehensive translation app. It's easy to use, has a massive vocabulary, and best of all - it's completely free!