In the beginning, I was very frustrated with Russian in Duolingo. It looked like they were teaching everything using latin characters! Remembering this hybrid spelling of things was pretty hard, and frankly felt like I was missing out on learning to really read and write.
For some reason though, in the mobile app, everything appeared in cyrillic - wat?
Then I noticed the switch at the far corner of the container
Hmmm... click.
Genius!