Unfortunately I don’t know of any open source alternative. After another response in this thread I started using busuu.com for French and Italian, and I’m liking it so far. Their business model is pretty transparent, but I find it less annoying than Duolingo so far.
Viel Glück and buona fortuna with your language learning!
Duolingo, the dominant player, can simply buy competition like busuu, bypassing the need they’d otherwise have to improve their software.
I like that’s it’s more real life, the talking, people, subjects etc. Think I’ll use it for a while, because on duolingo I wasn’t evolving much anymore in German, this goes further up it seems
Just as pushy as duolingo unfortunately in ads and mainly in pushing to and rewarding premium.
Yeah, the adds take up some time, but I still find the overall experience less annoying than I did with Duolingo last time I used it. The push towards human interaction, which Duolingo has actively pushed away from, is also welcome.