Aurora Forecast & Alerts - Lux
Northern Lights Tracker
About
This app provides a personalized aurora probability score based on multiple space weather factors, eliminating guesswork for aurora viewing. It features real-time maps, 3D globes, hourly forecasts, and smart alerts to help you find and witness the Northern Lights.
What's New in Aurora Forecast & Alerts
1.1.1
July 7, 2026
• Sharper aurora forecast and Kp updates • Faster map, alerts and night-sky view • Stability and performance improvements
MoreSubscription plans
Aurora Forecast Pro
All aurora alerts, forecasts, maps & widgets
Developer apps
FAQ
What is the aurora probability score in Lux?
The aurora probability score in Lux is a personalized score that indicates your chance of seeing the Northern Lights. It is calculated by weighing six factors: KP index, Bz magnetic field direction, solar wind speed, cloud cover, light pollution, and darkness at your location.
Does Lux have ads?
No, Lux is ad-free, allowing for an uninterrupted aurora viewing experience. The app is free to download and offers an optional subscription for advanced features.
How often does Lux update its aurora forecast?
The aurora forecast data and aurora activity in Lux refresh every few minutes, utilizing live space weather data from NOAA monitoring satellites. The app also updates widgets every 15 minutes.
What devices does Lux support?
Lux is currently supported on iPhone devices. Future compatibility with other platforms may be announced by the developer.
What are the subscription options for Lux?
Lux offers an 'Aurora Forecast Pro' subscription for $3.99 per month, which includes a 7-day free trial. This subscription likely unlocks premium features beyond the free offering.
How does Lux compare to other aurora forecast apps?
Unlike many apps that only provide a KP index, Lux analyzes multiple space weather factors and local conditions to give a clear, actionable probability score. It also offers advanced features like a 3D globe and community photo sharing.
What is the age rating for Lux?
Lux has an age rating of 4+, making it suitable for users of all ages. The app's content is generally appropriate for young children and adults alike.
Can I cancel my Lux subscription?
Yes, you can cancel your Lux subscription at any time. Subscriptions can typically be managed through your device's app store settings, and cancellation usually takes effect at the end of the current billing period.