Text alerts are messages sent directly to a person's mobile phone via SMS (Short Message Service). These alerts can provide important information, such as weather updates, emergency notifications, or reminders for appointments. They are often used by organizations, schools, and businesses to communicate quickly and efficiently with their audience. Users can typically opt-in to receive text alerts by providing their phone number and agreeing to the service. Many services allow customization, so individuals can choose the types of alerts they want to receive, ensuring that the information is relevant to their needs.