iidenki for android
language training suite for Japanese
developed by Sebastian Fabian
requirements: android version 2.1 or newer

released under the GNU GENERAL PUBLIC LICENSE Version 3 (GPLv3)

Kanji recognition adapted from Kanji Writing Game by Abraham Macias Paredes (released under GPLv3)
Derived from prior work by Robert E. Wells on JStroke.
Derived from prior work by Todd David Rudick on JavaDict and StrokeDic.
Makes use of KANJIDIC data from Jim Breen of Monash University