Grid Square Locator is a free utility and tool application developed by the US1PM Boris for Android. This app displays the current value of the Grid Square Locator (Maidenhead Locator), adjacent Grid squares, and the relative position of the subsquare within the Grid square. It calculates the user's geographical coordinates obtained from the GPS system, mobile network, or Wi-Fi. The app requires permission to determine the user's location and GPS must be turned on. However, it does not require internet access or mobile network.

The application is simple and easy to use. It provides users with accurate and reliable information about their current location. The app also includes a "Time" field that shows the time of the last location update, which is useful for tracking the time of the user's movements. Overall, Grid Square Locator is a useful app for anyone who needs to know their current location and the adjacent Grid squares.