The most popular types of mobile apps encompass a wide range of categories, including social media platforms, messaging apps, gaming applications, productivity tools, and entertainment apps. Users often seek out apps that cater to their specific needs and preferences, contributing to the popularity of fitness apps, navigation tools, and photo/video editing applications. Additionally, utility apps like file explorers play a crucial role in efficient device management. While discussing mobile apps, it's important to note that using mod APKs, such as a CX File Explorer mod APK, can pose risks like security vulnerabilities and violate terms of service. It's recommended to download and use apps from official sources to ensure a secure and stable user experience.