Now that everything in language learning must be an app, it looks like @languagetransfer has released an app too! (Only for Android, I guess.)
Of course, the courses are still available without an app on their web page, https://www.languagetransfer.org/free-courses-1
Polyglot City is the right instance for you, if you're interested in languages, language learning and translating, or if you are multilingual or polyglot. All languages are allowed to flourish on our timelines. Welcome!