日语片假名卡
assistbamboowing
Katakana Pro
Gerson Luca
Katakana Quiz
MLMG
日语五十音图(平假名&片假名)
Jerry Studio XYZ
Katakana for Beginner
Nahu Studio
JustKana 日语五十音学习 (平假名 & 片假名)
nullium
Hiragana/Katakana Drills
Appicenter LLC
Katakana Memory Hint [English]
The Japan Foundation
Kana App - Katakana & Hiragana
Fyodor Chebnev
Katakana - Read and Write
Cornerstone Studio