Aurora Forecast: Night Sky app analytics for October 17

Is tonight worth a look at the sky? Revontulet combines local aurora activity, cloud cover and darkness into one clear answer for your location. See the current conditions and why the app gives its verdict. Explore a three-day outlook in three-hour steps. Camera guidance suggests starting values for ISO, shutter speed and aperture. A home-screen widget keeps the latest reading close by. The current verdict is free. A one-time Pro purchase unlocks the outlook and camera guidance; there is no subscription. Forecasts can change and an aurora sighting is never guaranteed. Data: NOAA Space Weather Prediction Center and MET Norway. App interface: English, Finnish and German.