Port Authority Pro APK v2.1.0 (Pro Unlocked Port Scanner) [2026]

🌐 App Purpose & Professional Network Utility

Network technicians and home lab fans need fast network tools on the go. Taking a heavy laptop into a server closet takes time. Port Authority Pro turns your Android phone into a handy network test box. It probes target servers, audits router ports, and finds hidden devices in seconds.

Many free network tools display pop-up ads and track device data. Port Authority Pro takes a clean approach. It runs in user space without requiring root privileges. It protects your system stability and warranty while delivering sharp diagnostic data. Visit our Android Utility Apps hub to discover more system maintenance tools.

The application serves three primary user groups: system administrators checking remote servers, developers debugging local socket connections, and home users hunting for bandwidth hogs on their Wi-Fi. Its clean design and rapid scanning engine make complex network diagnostics simple for everyone.

⚡ Unlocked Pro Features & High-Speed Architecture

The free version limits scanning threads and blocks report exports. The unlocked Pro build removes all barriers. It provides complete access to advanced network scanning options. Below are the key benefits included in this release:

• Custom Thread Pool: Run up to 32 parallel worker threads for quick sweeps across large subnets.
• Custom Port Groups: Save custom port lists for web servers, database clusters, and media rigs.
• Zero Advertisements: Work in a clean interface with no banner ads or pop-up interruptions.
• Multiple Export Formats: Save scan logs as JSON, CSV spreadsheets, or clear text files.
• True AMOLED Dark Theme: Save battery power on OLED screens during late-night maintenance.
• IEEE MAC Lookup: Automatically match hardware MAC addresses with official maker names.

The scanning engine uses modern non-blocking Java NIO sockets. When probing a server, worker threads send connection requests at the same time. If a port returns a SYN-ACK packet, the app marks it open right away. If it returns a RST packet, the app logs it as closed. If no answer arrives before the timeout expires, the app flags the port as filtered by a firewall.

You can adjust socket timeout values inside the settings menu. Lower timeouts speed up scans on fast local networks. Higher timeouts prevent false negatives when scanning distant cloud servers over mobile data connections.

🔍 LAN Host Discovery & Wake-on-LAN Magic Packet Engine

Fixing local network issues starts with knowing what is online. Port Authority Pro includes a discovery tool that maps your local subnet. The app reads your Wi-Fi IP address and calculates the network boundary automatically.

Next, the app scans all 254 host addresses on a standard class C subnet. It sends ICMP echo pings and checks the local kernel ARP cache. This dual check finds devices even when local firewalls drop ping requests. For every detected machine, the app shows:

1. Local IP Address: Shows current IPv4 and IPv6 assignments for each connected device.
2. Host Identification: Resolves mDNS and NetBIOS names for laptops, printers, and smart TVs.
3. Physical MAC Address: Displays the hardware MAC address needed for router DHCP reservations.
4. Hardware Manufacturer: Shows maker names like Intel, Apple, Cisco, or Raspberry Pi.

The built-in Wake-on-LAN tool lets you turn on sleeping machines remotely. When you tap the wake button, the app builds a standard magic packet. It places six bytes of 0xFF at the start, followed by sixteen copies of the target MAC address. It broadcasts this packet over UDP ports 7 and 9. If the target PC supports Wake-on-LAN in BIOS, it turns on without needing physical access.

This Wake-on-LAN tool is ideal for media servers and backup machines. You can keep your server asleep during the day to save electricity, then wake it up whenever you need to stream movies or back up files.

🛠️ DNS Resolution & Service Port Profiles

Scanning all 65535 ports on a remote machine takes several minutes. Port Authority Pro solves this with curated port profiles. You can test common service ports in under five seconds:

• Web Traffic Ports: Tests ports 80 (HTTP), 443 (HTTPS), 8080 (Web Proxy), and 8443 (Alt-HTTPS).
• Remote Control Ports: Tests ports 21 (FTP), 22 (SSH), 23 (Telnet), 3389 (RDP), and 5900 (VNC).
• Database Ports: Tests ports 1433 (SQL Server), 3306 (MySQL), 5432 (Postgres), and 6379 (Redis).
• Mail Service Ports: Tests ports 25 (SMTP), 110 (POP3), 143 (IMAP), 465 (SMTPS), and 993 (IMAPS).
• Gaming & Media Ports: Tests ports 32400 (Plex Media Server), 25565 (Minecraft), and 27015 (Steam Server).

The integrated DNS lookup tool provides clear domain checks. You can query any web address to find its underlying IP addresses. The tool supports multiple DNS record types including A, AAAA, MX, NS, CNAME, and TXT records. This helps you verify mail server settings and domain ownership records straight from your mobile screen.

You can also run reverse IP lookups. If you notice an unfamiliar IP address accessing your network, enter it into the reverse lookup tool. The app queries public PTR records to show the domain name and web host connected to that address.

🌐 IPv6 Dual-Stack & Modern Subnet Discovery

Modern corporate and home networks increasingly adopt IPv6 dual-stack addressing. Port Authority Pro fully supports IPv6 socket creation and hostname resolution. When connected to an IPv6-enabled network, the app detects both 128-bit global unicast addresses and link-local fe80:: prefixes.

Unlike IPv4 ARP tables, IPv6 relies on ICMPv6 Neighbor Discovery Protocol (NDP). Port Authority Pro listens for router advertisement messages and neighbor solicitation replies to map IPv6 nodes. This ensures that modern smart devices and mobile hardware operating purely over IPv6 remain visible during your security audit.

🛡️ Security Audit, Sandbox Isolation & Privacy Verification

Network utilities handle sensitive connection details. That makes security and privacy vital. Port Authority Pro operates with full transparency. Below is our security audit for this verified release:

• Zero Root Access Needed: All port checks use standard Android network socket APIs. The app never asks for root access, busybox, or custom firmware mods.
• Private Local Data: Diagnostic packets travel only to target IP addresses on your screen. The app collects no usage statistics or scan logs.
• Minimal Permissions: The app requests only network state and Internet permissions. It never asks for contacts, cameras, microphones, or GPS location.
• Clean Antivirus Scan: The package matches our verified 64-hex SHA-256 hash. It holds a clean 0/70 detection score across all antivirus scanners on VirusTotal.

Running network scans without root keeps your personal files safe. Because the app stays inside Android's normal user sandbox, it cannot alter system files or access private data from other apps. Review our Security Verified page for more details on our mobile testing process.

📱 Setup Instructions & How to Install Port Authority Pro APK

Follow these step-by-step setup instructions to install and configure Port Authority Pro for high-speed network audits on your Android device:

1. Connect to Local Wi-Fi: Join the Wi-Fi network you plan to check. Make sure your phone gets a valid IP address from the router DHCP pool.
2. Start Host Discovery: Open Port Authority Pro and tap the Discover icon. The app scans your local subnet and lists all connected devices with their IP and MAC vendor tags.
3. Pick Target Machine: Tap any discovered device or type an external domain name into the top address bar.
4. Select Port Range: Choose your port profile. Tap Common Ports for a quick check, or pick Custom Range to scan specific ports like 80-443.
5. Set Thread Count: Go to Settings and choose your thread pool size. Setting 16 threads offers fast scans without bogging down your Wi-Fi router.
6. Run Port Scan: Tap the Scan button. The app tests each port and marks open sockets in bright green.
7. Export Diagnostic Log: When the scan finishes, tap Share. Pick JSON or CSV format to save the report to your downloads folder or share it with team members.

To keep your scan logs organized, create custom labels for your devices in the app. You can name your desktop PC, NAS storage drive, and smart TV. When you run future scans, the app remembers your labels and alerts you if an unknown device appears on your network.

🔬 TCP Socket Internals & Port State Handling

Understanding socket states helps you interpret scan results accurately. When Port Authority Pro tests an IP address, it creates a non-blocking TCP socket for each target port. The app relies on Android's native Linux networking stack to manage these connections.

The scanning engine observes three primary connection outcomes during a scan:

• Open Port Response: The target host replies with a TCP SYN-ACK packet. The app notes the socket as active and records the response latency in milliseconds.
• Closed Port Response: The destination operating system is reachable, but no active daemon listens on the requested port. The host sends a TCP RST packet to reject the request.
• Filtered Port Status: Neither a SYN-ACK nor a RST packet returns before the timeout timer expires. This usually means an upstream firewall silently dropped the connection attempt.

Java NIO non-blocking selectors allow a single thread to monitor dozens of open sockets simultaneously. This design prevents thread context switching overhead on multi-core mobile processors. The scanner avoids kernel socket exhaustion by closing completed probes immediately after detecting their response state.

🛡️ Firewall Filtering & Packet Drop Detection

Network firewalls behave differently depending on their internal security rules. Some firewalls return explicit ICMP Destination Unreachable messages. Others act as black holes, dropping incoming packets without sending any response back to your device.

Port Authority Pro helps identify these subtle filtering behaviors. When probing a remote server behind a stateful firewall, the app tracks response times across nearby ports. If standard ports respond with clean RST packets while protected ports time out silently, the tool flags the presence of an active packet filter.

When testing residential Wi-Fi routers, high thread counts can occasionally overwhelm small state tables. Setting connection timeouts between 400ms and 800ms provides reliable detection while preventing router slowdowns. If you scan over cellular networks, carrier-grade NAT may introduce variable latency. Increasing the timeout to 1200ms ensures accurate port state detection across mobile towers.

💼 Real-World Audit Scenarios & Troubleshooting

Network administrators and home lab enthusiasts use Port Authority Pro in several practical scenarios:

• Smart Home Device Auditing: Smart plugs, security cameras, and voice hubs often run web servers with default settings. Running a host discovery scan lists all connected IoT gadgets on your Wi-Fi, revealing open Telnet or HTTP ports that require password updates.
• Server Maintenance Checks: After updating firewall rules on a Linux server, run a quick port sweep to confirm that only intended ports remain open. You can verify that SSH on port 22 and HTTPS on port 443 are reachable while database ports remain blocked from public access.
• Remote Workstation Wakeup: If you need to access office files while working remotely, send a Wake-on-LAN magic packet from Port Authority Pro. Once the desktop boots up, verify its remote desktop port 3389 is active before launching your remote desktop client.
• Wi-Fi Bandwidth Troubleshooting: When network speeds drop unexpectedly, use the LAN discovery sweep to identify all active devices. The resolved MAC vendor names help spot unauthorized guest connections or unrecognized hardware using bandwidth.

Having these network audit tools on your mobile phone eliminates the need to carry diagnostic laptops for quick network health checks. You can diagnose connection drops, test router port forwarding, and verify server reachability wherever you go.

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