It gives me particular pleasure to welcome the Official RTK Flashcard & Review App as a complement to vol. 1, vol. 2, and vol. 3 of Remembering the Kanji. There are so many things that a bound book cannot do when it comes to reviewing the kanji, and I am confident that a great many students of Japanese will find this application an indispensable tool.
The latest update (December 2012) allows users to shift between the older series and the newer series, which contains the 196 character added to the “official list” in fall of 2010.
At present it is only available in English, but I look forward to having apps prepared in other languages as well.