Astro Compass Pro is a unique, high-precision professional instrument that is unlike any other compass in history. Find your way, day or night, and in any weather. Orientation has never been so precise and easy. There are no ads, and no cell service is required.
Astro Compass Pro uses GPS data to calculate the position in the sky of the Sun and the Moon using advanced astronomical algorithms with accuracy down to 0.01 degree. By orienting your device with the Sun or Moon as instructed in the easy-to-follow help screens, the compass then accurately aligns with the Earth at your location.