Compass Free Blue is a useful navigation tool developed by 30dfun for Android devices. This app is designed to show the direction of the four cardinal points - north, south, east, and west - in a stationary frame of reference relative to the Earth's surface.

To ensure proper functionality, it is necessary to calibrate the compass by spinning the device from side to side and up and down for several seconds. Also, make sure that your device supports a compass before using this app.

Apart from the basic functionality of a compass, this app also provides additional features such as computing the sunrise and sunset time and the moon phase. Additionally, there is a built-in flashlight that can come in handy when navigating in low light conditions.

The app comes with full HD graphics, making the user interface easy to read and navigate. Before using the app, it is essential to enable location services on your device.

Overall, Compass Free Blue is a useful app for anyone who needs a reliable navigation tool on the go.