Monitor lightning and extreme weather events in real-time with advanced features like interactive maps, custom alerts, and detailed forecasts. All advanced functionality requires a paid subscription for comprehensive weather monitoring.



10+ similar apps compared and reviewed
Looking for something like Star Signal? We've analyzed 10+ similar apps to help you find the best alternative. Each app is compared by ratings, features, and real user reviews, so you can make the right choice.







Monitor lightning and extreme weather events in real-time with advanced features like interactive maps, custom alerts, and detailed forecasts. All advanced functionality requires a paid subscription for comprehensive weather monitoring.




Get hyper-accurate, real-time weather forecasts for any location worldwide. Monitor precipitation with a live map, view detailed daily and weekly predictions, and stay informed about geomagnetic storms and UV levels. Includes sunrise/sunset times and atmospheric pressure.


Access detailed astronomical weather forecasts worldwide, including cloud cover, seeing, and transparency. Integrates with popular weather resources and shows satellite and ISS passes for your location. Offers multiple visualization modes for data.


Access real-time weather updates, detailed forecasts, and severe weather alerts. Track storms, hurricanes, wildfires, and air quality with interactive radar maps and customizable notifications.


Get accurate, real-time weather updates for your current location or any city worldwide. Plan your day with detailed forecasts including temperature, rain, snow, wind, and atmospheric conditions up to 15 days in advance.


This app provides advanced weather forecasting by integrating real-time radar and satellite data. It offers early warnings for rainfall and potential disasters up to three hours in advance, with personalized alerts and a smart voice assistant for natural language interaction.


Track lunar phases, moonrise/moonset times, and astrological insights to enhance daily balance and clarity. Plan events, set intentions, and gain personalized guidance aligned with celestial rhythms. Integrates with Apple Health for holistic well-being.


This app provides highly localized weather forecasts, including detailed information on wind, rain, tides, and UV index. It processes and refines global weather data to offer precise predictions for thousands of specific locations across the US. Users can access interactive radar, satellite views, and real-time observational data.


Explore the night sky with AR star maps, observation forecasts, and image recognition. Identify celestial objects, track satellites, and access environmental data for optimal stargazing. Includes tools for astrophotography and a gallery for inspiration.