StormWatch is a free weather app developed by Cirrus Weather Solutions LLC for iPhone users. It aims to be your go-to weather app with its critical alerts feature that overrides Do Not Disturb settings to ensure you receive important weather updates.

With StormWatch, you can access the most relevant weather information quickly. This includes current conditions, hourly and extended forecasts, and local or regional radar. The app prides itself on providing accurate weather forecasts by harnessing the local knowledge and dedication of over 2,000 National Weather Service meteorologists nationwide.

In addition to its core features, StormWatch offers an in-app upgrade called SW+ Alerts. This life-saving service sends push notifications whenever hazardous weather threatens your specific location. It compares multiple specific locations you select with weather watches and warnings issued by your local NWS office. You can also enable the "EnRoute" feature to receive severe weather alerts while on the go.

StormWatch+ Alerts includes push notifications for various weather events such as tornadoes, severe thunderstorms, flash floods, and tropical or winter weather alerts. The notifications are sent even if the app is not running and your device is not in use. Critical Alerts feature wake-me-up audio and voice alerts for the most severe warnings, ensuring you don't miss important updates.

Overall, StormWatch is a comprehensive weather app that provides personalized weather alerts and accurate forecasts in the palm of your hand.