An app to learn the basics of ladder logic, which is a graphical programming language.


An app about distance, time & speed field in math. This app helps you to learn to calculate it with the animation a car runs on.


A cassette player for albums. This app gives you the experiences of listening music with cassette tapes.


A music sequencer using numeric data. This app is for making MIDI data to send to an another app applied to virtual MIDI. Compatible with iPad.


The app analyzing the popularity of kanji.
The Japanese learn about 1000 kanji in elementary school. In lower grade, we learn kanji which have simple structures and used frequently. As the school grade goes up, they have more strokes and become less used ones. Being conscious of this stage is also helpful for those who learn the Japanese language.