Yes, completely free — no ads, no subscriptions, no hidden costs. We believe everyone should have access to the sky data above them. Always.
Every location on Earth. SunTrack uses your coordinates to calculate precise solar and lunar positions — whether you're in Tokyo, a Norwegian fjord, or the middle of the Sahara.
Accurate to within a fraction of a degree. We use established astronomical algorithms (NOAA solar calculations) that account for atmospheric refraction, elevation, and your exact GPS position. Sunrise and sunset times are accurate to the second.