Glad you like the concept! Russian is currently language #4 on my list, and I hope to add it in the first half of this year. There's a form at the bottom of Langliter's homepage that lets you select which language pair you'd like to see supported. That'll let me can shoot you an email when it is ready.

The concept seems really interesting and I've signed up to try and improve on my Spanish. I currently live in Amsterdam though, and there's no option in the drop-down for learning Dutch. Is it likely to make it onto your list?

Thanks for checking out the app. Dutch support would probably be a ways out. I think I'm going to need to eventually decide if I want to support languages before I have a lemmatizer in place. For me lemmatization is Langliter's killer feature and it's core to a lot of what's going on in the app.

But others might be okay with just a reading app that works offline, provides PoS highlighting and let's them build a vocab list (even in a less refined way).