Hybrid app development involves creating mobile applications that work on multiple platforms, such as iOS and Android, using a single codebase. It combines web technologies like HTML, CSS, and JavaScript to build cross-platform apps, offering several benefits over native app development. One of the key advantages is cost-effectiveness, as you can save time and resources by maintaining a single codebase for both platforms. Additionally, updates and modifications can be implemented more efficiently. However, hybrid apps may have slightly lower performance and access to device-specific features compared to native apps, so the choice between the two depends on your project's specific requirements and budget constraints.