google.com/store/apps/details?hl=en&id=jp.jfkc.KatakanaMemoryHintApp.Th
Mobile app for learning katakana using mnemonic pictures, sound, and quizzes. Designed for complete beginners and anyone starting to learn Japanese letters.
Kanji and kanaEducational gamesApps and toolsKatakanaQuizzesAppsHiraganaFree