This app was mentioned in 5 comments, with an average of 9.00 upvotes
I started learning Russian from an app this week. I'm so proud of myself for reading нет as nee-yet.
EDIT: https://play.google.com/store/apps/details?id=com.atistudios.italk.ru here's the app, it's free!
Duolingo hasn't done it for me. The first maybe 15-20 courses are good, but after that the sentences get really long and the robot voice just doesn't cut it. Inflection is wrong, stress is weird, speed fluctuates in and between words...
Memrise is great imo. I also really like https://play.google.com/store/apps/details?id=com.atistudios.italk.ru and ended up paying for it. Not sure of the have a website but I do most learning from the phone.