of these memrise seems the best to me. no fancy animation, you have to wait for (unlike drops), it works well in browser, and gives you a lot of freedom.

plus has the least awful/annoying free trial of all :)) (i ignored all, that wanted my credit card first.)

i do second the notion, that flashcards really do not need to be a subscription model, anki for example is great, there are a lot more apps like it, flashcards can be realised as a simple python script even!

really anything aside of vocab repetion is what makes these services worth it. and i guess i like the conversations feature memrise offers. (i played around with one of the big languages. i’m sure the ai features are clunkier with less popular langs?

babble of course is amazing. really anything that pairs you with natives is s-tier.