There is an app called dr moku's hiragana, it costs like $4 or something? GET IT! haha, I learned hiragana in about two hours! Don't use flash cards though, flash cards were made to review stuff you have already learned, not to learn said things. Also, you can go to youtube and look up Dr Moku to get a sample, it teaches you the first 10 kana? Anyways, Good luck!! ^^