The American Red Cross launched a free tornado app with lifesaving information.

The app – available in English or Spanish – gives iPhone, iPad, and Android smart phone and tablet users instant access to local and real-time information. It will help them know what to do before, during and after a tornado.

The app includes a high-pitched siren and “tornado warning!” alert that signals when a tornado warning has been issued in their area – even if the app is closed. An “all clear!” alert lets users know when a warning has expired or been cancelled.