? Test Game Lag, Ping Spikes & Packet Loss
NetSim Pro helps you diagnose why games or apps lag by simulating real weak-network conditions directly on your Android device.
Reproduce ping spikes, jitter, packet loss, unstable Wi-Fi, bandwidth drops, or complete disconnections, and observe how gameplay or app logic reacts.
Whether you're testing an FPS, MOBA, Battle Royale, MMORPG, or any latency-sensitive app, NetSim Pro makes it easy to evaluate performance under bad network conditions.
Use it to:
• Simulate game lag and connection instability
• Detect ping spikes and jitter
• Reproduce packet loss and freeze issues
• Test reconnection behavior after drops
Perfect for players, testers, and developers who want real-world network issue simulation.

? Advanced Weak-Network Simulation for Developers & QA
NetSim Pro is a full-featured network simulation tool designed for mobile developers, backend teams, and QA engineers.
Run accurate and repeatable network tests to ensure apps remain stable under unpredictable conditions.
You can:
• Simulate latency, jitter, and high-ping scenarios
• Emulate packet loss at custom percentages
• Verify retry & reconnection logic
• Detect protocol issues under degraded networks
Ideal for testing streaming apps, VoIP, multiplayer games, cloud services, or any real-time application.

? Bandwidth Limiter & Speed Control
Create realistic slow-network environments to understand how apps load and behave during congestion.
• Set custom upload & download speed limits
• Reproduce slow 2G/3G/4G or unstable Wi-Fi conditions
• Test adaptive streaming, loading states, and fallback logic
• Stress-test server-side handling under bandwidth restrictions

? Packet Capture & PCAP Export (Wireshark-Ready)
Capture all traffic during your weak-network test and export it as a standard PCAP file.
• Analyze protocols in Wireshark
• Inspect TLS handshakes & retransmissions
• Identify packet loss behaviors
• Debug low-level issues under throttled conditions
Perfect for networking engineers and advanced diagnostics.

? Preset Profiles for Instant Testing
Start testing in seconds with built-in network templates:
• 2G / 3G / 4G / LTE simulation
• Unstable Wi-Fi profiles
• High ping / jitter scenarios
• 100% packet loss & drop-connection modes
• “Bad Network” quick test templates
Useful for reproducing real user conditions with a single tap.

? Full Custom Configuration
Tune every aspect of your network simulation:
• Bandwidth & throughput limits
• Latency, delay & ping spikes
• Jitter ranges
• Packet loss percentage
• Instant on/off network cut
Replicate specific ISP behavior, edge-case bugs, or user-reported issues.

? Real-Time Floating Panel for Live Testing
Adjust throttling settings without leaving the app or game you’re testing.
• Toggle network simulation instantly
• Switch profiles in real time
• Modify upload/download speeds on the fly
• View current parameters while gaming or debugging
Ideal for gameplay testing, UI validation, and rapid iteration.

? Privacy-Focused & No Root Required
NetSim Pro uses Android’s secure VPN system to route traffic locally.
• No root needed
• 100% offline processing
• No data collection or upload
• Your tests stay private and fully controlled
Safe for both personal and professional use.

⭐ Why Choose NetSim Pro – Ping & Lag Sim?
• Simulate real-world weak-network behavior
• Test apps and games under ping spikes & packet loss
• Export PCAP for advanced protocol analysis
• Debug stability issues in unreliable environments
• Essential for developers, QA testers, and serious gamers
NetSim Pro delivers accurate, reliable and flexible weak-network simulation directly on your Android device.