Though Japan commonly uses the western numerical system originally derived from Arabic, it remains true that the Japanese possess their own numeric system based on numerical myriads.
This older system derived from the Chinese numerical system is still in fairly common use today, and can be somewhat jarring for a westerner to get used to.
With that in mind, I’ve developed JapaNumber. A single serving Android application that allows you to quickly translate western digits into the Japanese myriad system. This application is very useful for learning the way the Japanese numerical system works. Unfortunately, the application is not yet capable of making it easy to translate from the myriad system back into the western system – but there are plans to make it possible in the future.
So, if you’d like, head over to the Google Play store and give JapaNumber a try.