mj.apply.sci

3 listings we've seen · as of 8 Oct 2026. This is the maker name shown on the store, not proof of who owns the company.

Functionality & UI

Change the UI text on the Tenhou HTML5 Web Client from Japanese to English

Social Networking

Adds a pane to the tenhou.net and ron2.jp clients (/3, /4) in-game which contains the score history of the hands in the current game

Just for Fun

Translates the tournament editor page to English