[knoke]

I used it to quickly get from close to zero to an A1 level - which enabled me to directly take an A2 levels course - instead of getting bored of a too easy one too quickly.

At least it saved me a hundred euros, but it's not a substitute for a real course and real interactions.

But later it talks helped in using more esoteric grammar that I never hear in small talk.

I'd suggest to use the website from time to time as it has some well done explanation to what is grammatically going on (the app is theory free)