Go Championship
mobirix
Tsumego Pro (Go Problems)
LR Studios
Go Baduk Weiqi master
Go Game - BadukPop
BadukPop Go (CorePlane Inc.)
Go Baduk
DoPuz Games
Go Challenger-Go game(Tsumego)
Com2uS TYGEM Corporation
Go Baduk Weiqi Pro
BearTsumego -Play Go exercises
Shoko Sakurai
바둑2.0
게임 스튜디오 모노몹
세계의 바둑 2.0
MasterGames