PerfER - Network Diagnostics

PerfER is a network diagnostics toolkit for analyzing connection quality, Wi-Fi performance, internet speed, DNS behavior, IP information, and signal conditions on Android devices.

Use PerfER to inspect and troubleshoot network issues with a practical set of tools designed for real-world testing and diagnostics.

Main features:
• Internet speed testing
• Wi-Fi analysis and connection details
• IP address and network information
• DNS lookup and diagnostics
• Signal and mobile network inspection
• Ping and connectivity checks
• Network quality measurements
• Diagnostic result export and sharing

PerfER helps identify unstable connections, poor Wi-Fi conditions, DNS issues, signal problems, and other network-related bottlenecks. It is suitable for everyday troubleshooting, home network checks, and technical diagnostics.

The app focuses on utility and analysis rather than entertainment or communication. Some features may require system permissions such as location, phone state, or camera access in order to retrieve technical network information or use specific tools. Permissions are only used for the corresponding app functions.
PerfER is designed for users who want a compact and capable network utility for measuring, inspecting, and understanding how their device is connected.