Network Simulator - Lag Test
In-app purchases
5.0star
8 reviews
500+
Downloads
Everyone
info
About this app
Simulate real-world network conditions directly on your Android device.
Perform on-device network simulation on real Android phones — no emulator, no PC, no external proxies.
Test lag, packet loss, and bandwidth limits without root or system modification.
Network Simulator is a professional network testing tool for developers and QA engineers, designed for real-device testing under poor or unstable networks.
🚀 Key Features
🌐 Network Condition Simulation
• Simulate latency, jitter, packet loss, and bandwidth limits
• Reproduce 2G, 3G, 4G, slow Wi-Fi, and custom weak network scenarios
• Works with TCP, UDP, and ICMP (Ping)
📡 Packet Capture (PCAP)
• Capture live network traffic during weak network testing
• Export standard PCAP files
• Analyze traffic in Wireshark and other tools
• Inspect packet drops, latency, and protocol behavior
📊 Network Test Reports
• Automatically generate network testing reports during simulation
• View statistics on-device in CSV or interactive HTML format
• Visualize upload/download latency and packet loss trends
• Export reports for sharing, debugging, or documentation
🎯 Per-Domain Network Rules
• Apply network conditions to specific domains or APIs
• Whitelist or blacklist mode (mutually exclusive)
• Simulate partial failures while keeping other services unaffected
🧑💻 Built for Developers & Testers
• Floating control panel for real-time adjustments
• One-tap presets for common weak network scenarios
• Test real-device behavior beyond Android Emulator limitations
• An Android alternative to iOS Network Link Conditioner
🔒 Privacy & Security
• No root required
• Built on Android VpnService for local traffic routing
• All processing is done locally
• No data is collected or uploaded
Network Simulator helps you simulate poor networks, capture traffic, and analyze results — all on a real Android device.
Perform on-device network simulation on real Android phones — no emulator, no PC, no external proxies.
Test lag, packet loss, and bandwidth limits without root or system modification.
Network Simulator is a professional network testing tool for developers and QA engineers, designed for real-device testing under poor or unstable networks.
🚀 Key Features
🌐 Network Condition Simulation
• Simulate latency, jitter, packet loss, and bandwidth limits
• Reproduce 2G, 3G, 4G, slow Wi-Fi, and custom weak network scenarios
• Works with TCP, UDP, and ICMP (Ping)
📡 Packet Capture (PCAP)
• Capture live network traffic during weak network testing
• Export standard PCAP files
• Analyze traffic in Wireshark and other tools
• Inspect packet drops, latency, and protocol behavior
📊 Network Test Reports
• Automatically generate network testing reports during simulation
• View statistics on-device in CSV or interactive HTML format
• Visualize upload/download latency and packet loss trends
• Export reports for sharing, debugging, or documentation
🎯 Per-Domain Network Rules
• Apply network conditions to specific domains or APIs
• Whitelist or blacklist mode (mutually exclusive)
• Simulate partial failures while keeping other services unaffected
🧑💻 Built for Developers & Testers
• Floating control panel for real-time adjustments
• One-tap presets for common weak network scenarios
• Test real-device behavior beyond Android Emulator limitations
• An Android alternative to iOS Network Link Conditioner
🔒 Privacy & Security
• No root required
• Built on Android VpnService for local traffic routing
• All processing is done locally
• No data is collected or uploaded
Network Simulator helps you simulate poor networks, capture traffic, and analyze results — all on a real Android device.
Updated on
Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
No data shared with third parties
Learn more about how developers declare sharing
No data collected
Learn more about how developers declare collection
Data is encrypted in transit
You can request that data be deleted
What’s new
🌱 The app name has been updated to Network Simulator.
🐞 Fixed known issues and improved overall performance and user experience.
If you have any questions or suggestions while using the app, please go to Home → More → About Network Simulator → Give Us Feedback. Our team will follow up as soon as possible.
To learn more about Network Simulator, please visit our official website:
https://nsp.realsignal.com/
🐞 Fixed known issues and improved overall performance and user experience.
If you have any questions or suggestions while using the app, please go to Home → More → About Network Simulator → Give Us Feedback. Our team will follow up as soon as possible.
To learn more about Network Simulator, please visit our official website:
https://nsp.realsignal.com/
App support
About the developer
REALSIGNAL PTE. LTD.
help@realsignal.com
36 ROBINSON ROAD
#21-01 CITY HOUSE
Singapore 068877
+65 8427 9095
