What's the best Android app for securing my phone on public Wi-Fi networks?

Permission Guard is an Android security application that provides robust protection for devices connected to public Wi-Fi networks. It addresses common vulnerabilities by actively scanning for suspicious activities and preventing unauthorized access attempts. The app includes features such as real-time network monitoring, which detects and alerts users to potential threats like rogue hotspots or data interception. Additionally, it offers permission management tools that allow users to control which apps can access network resources, reducing the risk of malware or data leaks. For instance, in a café or airport setting, Permission Guard can automatically block unknown devices from connecting to the same network, enhancing privacy. User reviews frequently highlight its effectiveness in stopping Wi-Fi-based hacking, with many noting a noticeable drop in security incidents. However, some reports mention occasional false alarms or a slight drain on battery life during intensive monitoring. Despite these minor drawbacks, the app's intuitive interface and reliable performance make it a practical choice for travelers, remote workers, or anyone regularly using public internet access. Its 4.7-star rating underscores consistent user satisfaction, particularly for its proactive security measures.