FST

FULL DESCRIPTION

FST Speed Tester - Professional Network Performance Testing

Test your local network speed between Android devices with precision and ease. Whether you're setting up a new network, troubleshooting performance issues, or verifying connection quality, FST Speed Tester provides accurate real-time measurements.

🚀 KEY FEATURES

✓ Device-to-Device Speed Testing
Test network speed directly between two Android devices without requiring internet connectivity. Perfect for local network performance analysis.

✓ Multiple Connection Types Supported
• Ethernet / USB-LAN adapters
• WiFi networks
• Mobile data connections
Auto-detection of active network type with real-time status updates.

✓ Dual Testing Modes
• Server Mode: Host the speed test server on one device
• Client Mode: Connect to a server and run the test
Simple one-tap switching between modes.

✓ Comprehensive Speed Metrics
• Upload speed measurement (Mbps/Gbps)
• Download speed measurement (Mbps/Gbps)
• Real-time progress updates during tests
• Total bytes transferred tracking
• 10-second test duration for accurate results

✓ Network Information Display
• Local IP address
• Connection type indicator
• Network status monitoring
• Quick access to system network settings

✓ Cross-Platform Compatible
Works seamlessly with FST Windows version for cross-platform network testing between Android and Windows devices.

✓ Clean Modern Interface
Built with Material Design 3, providing an intuitive and beautiful user experience with support for Android's latest design guidelines.


📋 HOW IT WORKS

1. Choose Server Mode on the first device
2. Note the displayed IP address
3. Switch to Client Mode on the second device
4. Enter the server's IP address
5. Tap START to begin the speed test
6. View real-time upload and download speeds


🔧 TECHNICAL DETAILS

• Supports Android 7.0 (Nougat) and above
• Uses TCP socket-based testing protocol
• 1 MB buffer size for accurate measurements
• Automatic network type prioritization (Ethernet > WiFi > Cellular)
• Real-time network change detection
• No ads, no tracking, no unnecessary permissions


💡 USE CASES

• Network administrators testing LAN performance
• IT professionals troubleshooting network issues
• Home users verifying router and switch speeds
• Developers testing network infrastructure
• Anyone needing accurate local network speed measurements


🔒 PRIVACY & PERMISSIONS

FST Speed Tester only requests essential network permissions required for speed testing. No personal data is collected or transmitted. All testing is performed locally between your devices.

📞 SUPPORT
Have questions or feedback? Contact us through the app's support channels or visit our website.
⚡️ Start testing your network performance today with FST Speed Tester!