The supported device as follows:
The currently supported device of Rikaichamp is Web, Windows OS, and maybe iOS and Android operating systems, respectively. However, it can be supported by other platforms too.
For example, you can check that the Rikaichamp is available on Google Play store or not by visiting the site play.google.com yourself.
If it supports other devices too, then please let us know by comment section so that we will add it to our list.