Company Toshihiko Arai created these great apps:
Kami Typing! Typing trainer, 覚える! 元素 - 受験勉強に最適です。, 覚える! 英単語 - 日常会話、受験のための基本4000, 漢字読めるカナ? - 今さら人に聞けない。, ことわざ知っ得!ボケ防止・子供から大人まで!(゚∀゚)慣用句・四字熟語・故事成語, 日本史マスター、受験勉強に最適です。, 古文いとをかし - 受験勉強に最適です。, 覚える! 化学式 - 受験勉強に最適です。, コメントビューア「Chazuke」for ニコ生コメビュ, ツイラジ(音声読み上げ for Twitter), Goa & Psychedelic Trance - Internet Radio Free!, Dub & Reggae - Internet Radio, Gabber Hardcore - Internet Radio Free music, Vocal Trance - Internet Radio Free music, Baroque Music - Internet Radio, Hip Hop Underground - Internet Radio Free music, Alternative Rock - Internet Radio Free music, 料理の英単語マスター 〜 実践で役に立つ!, Classical Guitar Radio, English - English Quiz, Electronica - Internet Radio, Tango - Internet Radio Free music streaming app!, Salsa - Internet Radio Free music streaming app!, Cumbia - Internet Radio, Progressive Trance - Internet Radio Free music, Ambient & Chill Out Radio, New Age - Internet Radio Free music streaming app!, Hardstyle - Internet Radio, Dubstep - Internet Radio, Classical Piano - Internet Radio, Psychedelic Rock - Internet Radio Free music, Avant-Garde - Internet Radio, Bachata - Internet Radio, Jazz - Internet Radio music streaming app!, FUNK & GROOVE - Internet Radio, Soul & Motown - Internet Radio Free music, R&B - Internet Radio music streaming app!, Bossa Nova - Internet Radio, House - Internet Radio Free music streaming app!, Dance - Internet Radio, New Wave & Post Punk - Internet Radio Free music, Punk Rock - Internet Radio Free music, J-POP & Anime - Internet Radio Free music!, India - Internet Radio Free music streaming app!, 覚える!英熟語 - 実用英語、単語、構文をまるまる覚えよう!, 日常、旅行に必要なイタリア語, Star Notes - Read Sheet Music Game, Pitch perfect! Tune Up, Pitch trainer - Harmonize, MelodyMaker for musicians, MelodyMaker-Lite for musician!, Position and shifting for Violin, Cello and Bass, Get your right pitch with piano guide!, Arabic - Internet Radio, Polyrhythm - Develop brain exercise, rhythm sense, Piano Keyboards with Pythagorean Tuning., Preset Metronome, Jazz Soul RnB Radio Maniac, Polyrhythm ポリリズムでリズムトレーニング, Super Memo, Hysteric Oscillator オシレーター 波動, Pythagorean Tuning Keyboard, and others..