
Lingodeer
I was studying Japanese on Duolingo when I first heard of Lingodeer. As I got nearer and nearer the end of the Duolingo course, the numerous bugs and problems started to get to me and I wanted to switch. LingoDeer was a breath of fresh air.
Firstly, whilst Duolingo is more a collection of sentences that have been organised into topics, Lingodeer is a designed course that's organised according to topics and grammar. Further, Lingodeer actually explains the grammar as well. In every category that's a full(ish) grammar explanation before the lessons themselves (although you do have to kind of look for it as it's not immediately obvious that it's there).
For me, the difference between Duolingo Japanese and Lingodeer Japanese was like night and day. Where I often sat before Duolingo think...