Yamaga Mate is an Android app developed by J-WAVE i Inc. that provides regional and disaster prevention information for Yamaga City in Kumamoto Prefecture, Japan. This free app allows users to access shelter maps and information in Yamaga City, making it an essential tool in times of emergency.

The app supports multiple languages, including English, 한국, 中文（繁體）,中文（简体）, making it accessible to a wide range of users. However, users should note that the translations are generated mechanically using Google Translate and may not be entirely accurate. Yamaga City also states that they shall not be held responsible for any loss, damage, costs, or expenses arising from the use of this app.

Overall, Yamaga Mate is an excellent app for those living in or visiting Yamaga City, providing essential regional and disaster prevention information at no cost.