Trends shaping mobile application development include the rise of artificial intelligence, increased focus on user experience, and adoption of cross-platform frameworks. AI enhances functionality through personalized experiences and predictive analytics, while user experience remains paramount, with designs prioritizing simplicity and engagement. Cross-platform development allows for efficient creation for both iOS and Android ecosystems, reducing costs and time. Furthermore, security is more critical than ever, as developers increasingly prioritize robust secure practices to protect users from data breaches and cyber threats.