The significance of data privacy in mobile applications is crucial due to the sensitive nature of personal information collected from users. As mobile apps often gather data such as location, contacts, and health information, ensuring privacy safeguards builds consumer trust. Compliance with regulations like the California Consumer Privacy Act (CCPA) or GDPR is also essential, promoting transparency in data collection and management. Achieving a balance between functionality and privacy protection not only enhances user experience but also mitigates legal risks for developers.