Any good Japanese learning software?

[kevinb]

Do you have to fully understand one to move on to another? Like I see most people start by leaning katakana then go to hiragana?

[Pampho85]

Well, it depends. For grammatically correct phrases and such, Kanji isn't used. It all depends if you want to be able to express everything. Oh and Romaji is rarely used now I think, I heard my friend say that before, so I personally won't be taking my time to learn it.