tWareki is an Android application developed by Taosoftware Co. Ltd. that converts the Japanese era (Wareki) to the Gregorian calendar year. It is a useful tool for those who need to convert dates in Japanese era to Gregorian calendar year as it can be challenging to calculate them manually.

The application has a simple and user-friendly interface that allows users to input the Japanese era year and view its corresponding Gregorian calendar year. The app provides accurate results for all Japanese era years, including the current era, Reiwa. The results are displayed instantly, making it easy for users to quickly convert the dates they need.

In addition, tWareki is free to use and does not require any special permissions, making it a safe and reliable tool for anyone in need of a Japanese era to Gregorian calendar converter. Overall, tWareki is a useful and efficient application for those who frequently need to convert dates in Japanese era to Gregorian calendar year.