GSI Map is a free Android application developed by tm23factory that offers a simple and user-friendly map of Japan. The app utilizes the GSI tile service, which provides various map types such as Standard, Pale, White, Photo, English, and Altitude color. This feature allows users to choose their preferred map type depending on their needs.

One of the best features of GSI Map is its ability to memorize a position in your phone and scroll that position instantly. Additionally, users can rename, align, or remove positions in the Manage Position display. Unlike other map apps, GSI Map does not require any special permissions such as GPS access permission, making it a lightweight and safe application to use.

Overall, GSI Map is a useful tool for travelers who need a reliable and easy-to-use map of Japan. With its simple interface and various map types, users can easily navigate through the country without any hassle.