Features

• Living skies. Drawn, gently animated skies for every condition: sun, the moon in its real phase, stars, drifting clouds, rain and snow that lean with the wind, fog, and storms with soft lightning flashes. Sunrise and sunset colours blend with the time of day.
• Location screen. The next 48 hours, up to 10 days, and tiles for wind, humidity and dew point, UV, pressure with its trend, visibility, and sunrise and sunset. Swipe between saved places.
• Northern lights. Where aurora is possible, a card shows tonight's chance from the Kp forecast, your location's darkness and cloud cover, the best viewing window, and a 3-day Kp chart. Southern lights in the southern hemisphere.
• Widgets. Home Screen in small, and medium with a six-hour forecast; Lock Screen in rectangular, circular and inline. Each shows your current location or a saved place.
• Your way. Choose which unit leads (the other is always beside it), the forecast source, animated skies everywhere, on the location screen only or off, and the list background.

Privacy

duoTemp has no accounts, analytics, ads or tracking, and collects no personal data.

• Your location stays on the device. Only coordinates rounded to about 1 km are sent to the forecast provider you choose.
• The northern lights forecast is one global file; no location is sent for it.
• Settings and cached forecasts are stored on the device only.

Data sources

• Forecasts: MET Norway (CC BY 4.0)
• Forecasts: Apple Weather
• Northern lights: GFZ Potsdam Kp forecast (CC BY 4.0)
• Northern lights fallback: NOAA SWPC