Easy to dive in.
There are lots of ways to learn the kana and also a huge amount of words or grammar. This app helps to link everything right from the start. One may be bored at start as in the first levels, there are repetitions everywhere, but soon enough one notice how useful and well thought the content had been combined. I tried a lot of apps and books and always get a feeling to understand ... until I intend to build my own sentences. With this app it becomes easier with every level and so soon enough it will only be a matter of vocab to really use all potencial. Only thing I miss is the possibility to add own flashcards.