Track aurora activity with real-time forecasts and cloud coverage maps. View interactive layers for aurora predictions and weather conditions. Watch live webcams from around the world to observe the aurora in real time.
The app tests network performance for Content Delivery Networks, device connections, and internet speeds. It offers location support, full test history, GZIP support, and time/speed details.
The app computes sailing yacht performance polars from input data including length, displacement, and sail areas. Results are visualized as graphs and tables, and can be sent to Weather4D Pro.
Count down to with a simple that displays remaining . Shake your phone for fun sound effects. View beautiful graphics and set reminders for upcoming events.