ALL IN ONE JAPANESE puts Hiragana, Katakana & Romaji Charts, plus Pronunciation all in one application and all on one screen for your convenience. Hiragana Characters (red) are set as the top icons. Romaji characters (purple) appear when you press and hold the icons. When releasing an icon, the Katakana characters appear (blue). And by touching a new character or open space the icons return to the original hiragana characters. Also the pronunciation of each character is pronounced as you press on the individual icons. AND you also get the "A I U E O" song (A I U E O Song, c. Brad Kaya, 2004-2009, all rights reserved) to further assist with your retention.This is definitely the best way to get you on your way to retaining and mastering Hiragana, Katakana, Romaji & Japanese Pronunciation.