Company CELSYS,Inc. created these great apps:
COMIC/まひるの天使, SUZUME PHOTO, COMIC / ぴよこと幸せ, Mahiru Angel(English), 白昼天使(中国语), Magic girl Mai(English), 魔法少女舞(中国语), まひるの天使 for iPad, Mahiru Angel(English) for iPad, CSA Reader for CLIP, CSA Reader HD for CLIP, よみキャラ Reader for CLIP, RoomRuler, RoomRulerLite, kakooyo! – 楽しく描けるお絵かきアプリ, BS Reader DL, IJIRO - みんなの3D作品をイジって遊ぼう, Clip Studio Paint, Clip Studio Paint for iPhone, CLIP STUDIO PAINT, and others..