Mobile application development is characterized by platform diversity, as apps must function on both iOS and Android. It often incorporates agile methodologies to ensure rapid iteration and flexibility. Developers utilize various programming languages and frameworks, like React Native or Flutter, to create cross-platform solutions. Key factors include ensuring user experience, maintaining security, and optimizing for performance. Additionally, mobile apps must adhere to app store guidelines for successful deployment. Constant updates are essential to meet user expectations and respond to emerging technologies.