I really like it. The free version is completely useless sadly, but I paid for a month of premium, then when I tried to cancel the subscription they offered me 3 months at half price so I took it. I'll probably keep it at full price when the discount period ends.

I use it alongside Duo and Memrise (which is meant to be getting overhauled again sometime very soon) and I find it by far the most useful and enjoyable. I'm really only keeping those going for the streaks at this point.

In LingQ you build a database of words you've seen which gets tracked across all media. You get a news feed of simple lessons and real atricles/videos, and you can import your own links so that you're learning from real content, I used it for 3 weeks or so before importing an ebook. You tap new words to see their translation, then from then on its highlighted based on how familiar you are with it, and all lessons are broken down by the number of new/learned words so you can judge how difficult it will be before you go in.

If you want to try it I can give you a referral link that will give you an extra 100 free words (I think it's only 20 to start with, which is why I said it was completely useless up top - that's like 2 sentences), and if you do end up paying after that I think I get a percentage towards my premium or something, idk.