Company Nami Kataoka created these great apps:
無料で音楽が聴けるアプリ！フリメロ（Free Melody） for YouTube, JPOP music watcher (Free) – The Japanese hit pop chart for YouTube, TUBE WATCHER PRO – Free background video player for YouTube, kpop music watcher 韓国の動画や音楽アプリ, anime music watcher (Free) - Japanese anison and vocaloid for YouTube, and others..
