Still waiting for their Russian course!
Their volunteer translation system may seem unreliable, but it's probably the only way smaller languages will ever get attention. At this point, I'm probably better off picking up some Polish books, learning a bit on my own, and contributing to their project.
With significant effort I could type some Georgian or Armenian into Google Translate -- they are awful, awful scripts. Russian was easier, but not as widespread as I'd expected. I could also let other people type things, and they all know about switching between layouts, since they do it all the time to type email addresses etc.
If you're learning Russian, you have to learn a new alphabet anyway, a new layout isn't that much more trouble.
For iOS, just add the keyboard and it will become available (this is the same way that most people use emojis).
On Mac, you can add the keyboard as well. There is a phonetic keyboard for Russian that I've found to be much easier than the standard layout. I map keyboard switching to ctl+opt+cmd+space, which works pretty well for me. What I really like about Mac is that you can use dictation to read Russian words that you don't need to understand. You will need to download a Russian-specific voice for this, otherwise it will simply read the names of the letters.
Or just learn to touchtype off the bat.
Depending on your OS, you can also use a phonetic keyboard layout instead of the standard Russian one, but I really strongly recommend learning the standard Russian layout.